<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:a3be5318-7bd7-44f0-b3c5-b6662a459bfa,g:ec352bd3-7f7b-4756-85f6-68002af32baf-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:cmlf="http://www.cmlifesciencesinc.com/20220502" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.cmlifesciencesinc.com/20220502">
  <xs:import namespace="http://fasb.org/srt/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2021q4" schemaLocation="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cmlf-20220502_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cmlf-20220502_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cmlf-20220502_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cmlf-20220502_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.cmlifesciencesinc.com/role/Cover">
        <link:definition>0001001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://www.cmlifesciencesinc.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001002 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParentheticals" roleURI="http://www.cmlifesciencesinc.com/role/ConsolidatedBalanceSheetsParentheticals">
        <link:definition>1002003 - Statement - Consolidated Balance Sheets (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveLoss" roleURI="http://www.cmlifesciencesinc.com/role/ConsolidatedStatementsofOperationsandComprehensiveLoss">
        <link:definition>1003004 - Statement - Consolidated Statements of Operations and Comprehensive Loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveLossParenthetical" roleURI="http://www.cmlifesciencesinc.com/role/ConsolidatedStatementsofOperationsandComprehensiveLossParenthetical">
        <link:definition>1004005 - Statement - Consolidated Statements of Operations and Comprehensive Loss (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofRedeemableConvertiblePreferredStockandStockholdersEquityDeficit" roleURI="http://www.cmlifesciencesinc.com/role/ConsolidatedStatementofRedeemableConvertiblePreferredStockandStockholdersEquityDeficit">
        <link:definition>1005006 - Statement - Consolidated Statement of Redeemable Convertible Preferred Stock and Stockholders&#8217; Equity (Deficit)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlows" roleURI="http://www.cmlifesciencesinc.com/role/ConsolidatedStatementsofCashFlows">
        <link:definition>1006007 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationandDescriptionofBusiness" roleURI="http://www.cmlifesciencesinc.com/role/OrganizationandDescriptionofBusiness">
        <link:definition>2101101 - Disclosure - Organization and Description of Business</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationandDescriptionofBusinessDetails" roleURI="http://www.cmlifesciencesinc.com/role/OrganizationandDescriptionofBusinessDetails">
        <link:definition>2402401 - Disclosure - Organization and Description of Business (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPolicies" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPolicies">
        <link:definition>2103102 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesPolicies" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPoliciesPolicies">
        <link:definition>2204201 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesTables" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPoliciesTables">
        <link:definition>2305301 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesRestatedthepreviouslyreportedbalancesanddisclosedDetails" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPoliciesRestatedthepreviouslyreportedbalancesanddisclosedDetails">
        <link:definition>2406402 - Disclosure - Summary of Significant Accounting Policies - Restated the previously reported balances and disclosed (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails">
        <link:definition>2407403 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesConcentrationRiskDetails" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPoliciesConcentrationRiskDetails">
        <link:definition>2408404 - Disclosure - Summary of Significant Accounting Policies - Concentration Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesCashCashEquivalentsandRestrictedCashDetails" roleURI="http://www.cmlifesciencesinc.com/role/SummaryofSignificantAccountingPoliciesCashCashEquivalentsandRestrictedCashDetails">
        <link:definition>2409405 - Disclosure - Summary of Significant Accounting Policies - Cash, Cash Equivalents and Restricted Cash (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombination" roleURI="http://www.cmlifesciencesinc.com/role/BusinessCombination">
        <link:definition>2110103 - Disclosure - Business Combination</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationDetails" roleURI="http://www.cmlifesciencesinc.com/role/BusinessCombinationDetails">
        <link:definition>2411406 - Disclosure - Business Combination (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognition" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognition">
        <link:definition>2112104 - Disclosure - Revenue Recognition</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionTables" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognitionTables">
        <link:definition>2313302 - Disclosure - Revenue Recognition (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionDisaggregationofRevenueDetails" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognitionDisaggregationofRevenueDetails">
        <link:definition>2414407 - Disclosure - Revenue Recognition - Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionRemainingPerformanceObligationsDetails" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognitionRemainingPerformanceObligationsDetails">
        <link:definition>2415408 - Disclosure - Revenue Recognition - Remaining Performance Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionRemainingPerformanceObligationsDetails_1" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognitionRemainingPerformanceObligationsDetails_1">
        <link:definition>2415408 - Disclosure - Revenue Recognition - Remaining Performance Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionContractAssetsandContractLiabilitiesDetails" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognitionContractAssetsandContractLiabilitiesDetails">
        <link:definition>2416409 - Disclosure - Revenue Recognition - Contract Assets and Contract Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/RevenueRecognitionNarrativeDetails">
        <link:definition>2417410 - Disclosure - Revenue Recognition - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.cmlifesciencesinc.com/role/FairValueMeasurements">
        <link:definition>2118105 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.cmlifesciencesinc.com/role/FairValueMeasurementsTables">
        <link:definition>2319303 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryofFairValueonaRecurringBasisDetails" roleURI="http://www.cmlifesciencesinc.com/role/FairValueMeasurementsSummaryofFairValueonaRecurringBasisDetails">
        <link:definition>2420411 - Disclosure - Fair Value Measurements - Summary of Fair Value on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>2421412 - Disclosure - Fair Value Measurements - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryofutilizedindeterminingvaluationDetails" roleURI="http://www.cmlifesciencesinc.com/role/FairValueMeasurementsSummaryofutilizedindeterminingvaluationDetails">
        <link:definition>2422413 - Disclosure - Fair Value Measurements - Summary of utilized in determining valuation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipment" roleURI="http://www.cmlifesciencesinc.com/role/PropertyandEquipment">
        <link:definition>2123106 - Disclosure - Property and Equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentTables" roleURI="http://www.cmlifesciencesinc.com/role/PropertyandEquipmentTables">
        <link:definition>2324304 - Disclosure - Property and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentComponentsDetails" roleURI="http://www.cmlifesciencesinc.com/role/PropertyandEquipmentComponentsDetails">
        <link:definition>2425414 - Disclosure - Property and Equipment - Components (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/PropertyandEquipmentNarrativeDetails">
        <link:definition>2426415 - Disclosure - Property and Equipment - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentDepreciationandAmortizationDetails" roleURI="http://www.cmlifesciencesinc.com/role/PropertyandEquipmentDepreciationandAmortizationDetails">
        <link:definition>2427416 - Disclosure - Property and Equipment - Depreciation and Amortization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://www.cmlifesciencesinc.com/role/RelatedPartyTransactions">
        <link:definition>2128107 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsTables" roleURI="http://www.cmlifesciencesinc.com/role/RelatedPartyTransactionsTables">
        <link:definition>2329305 - Disclosure - Related Party Transactions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/RelatedPartyTransactionsNarrativeDetails">
        <link:definition>2430417 - Disclosure - Related Party Transactions - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsRelatedPartyExpensesDetails" roleURI="http://www.cmlifesciencesinc.com/role/RelatedPartyTransactionsRelatedPartyExpensesDetails">
        <link:definition>2431418 - Disclosure - Related Party Transactions - Related Party Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebt" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebt">
        <link:definition>2132108 - Disclosure - Long-Term Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtTables" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebtTables">
        <link:definition>2333306 - Disclosure - Long-Term Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtLoanandSecurityAgreementDetails" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebtLoanandSecurityAgreementDetails">
        <link:definition>2434419 - Disclosure - Long-Term Debt - Loan and Security Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebt2016FundingCommitmentDetails" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebt2016FundingCommitmentDetails">
        <link:definition>2435420 - Disclosure - Long-Term Debt - 2016 Funding Commitment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtMaturitiesDetails" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebtMaturitiesDetails">
        <link:definition>2436421 - Disclosure - Long-Term Debt - Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtMaturitiesDetails_1" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebtMaturitiesDetails_1">
        <link:definition>2436421 - Disclosure - Long-Term Debt - Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebt2020MasterLoanAgreementDetails" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebt2020MasterLoanAgreementDetails">
        <link:definition>2437422 - Disclosure - Long-Term Debt - 2020 Master Loan Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebt2020MasterLeaseAgreementDetails" roleURI="http://www.cmlifesciencesinc.com/role/LongTermDebt2020MasterLeaseAgreementDetails">
        <link:definition>2438423 - Disclosure - Long-Term Debt - 2020 Master Lease Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentsandContingencies">
        <link:definition>2139109 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesTables" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentsandContingenciesTables">
        <link:definition>2340307 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentsandContingenciesNarrativeDetails">
        <link:definition>2441424 - Disclosure - Commitments and Contingencies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesOperatingLeasePaymentsDueDetails" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentsandContingenciesOperatingLeasePaymentsDueDetails">
        <link:definition>2442425 - Disclosure - Commitments and Contingencies - Operating Lease Payments Due (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesCapitalLeasePaymentsDueDetails" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentsandContingenciesCapitalLeasePaymentsDueDetails">
        <link:definition>2443426 - Disclosure - Commitments and Contingencies - Capital Lease Payments Due (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesCapitalLeasePaymentsDueDetails_1" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentsandContingenciesCapitalLeasePaymentsDueDetails_1">
        <link:definition>2443426 - Disclosure - Commitments and Contingencies - Capital Lease Payments Due (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentandContingenciesScheduleofMaterialPurchaseCommitmentsDetails" roleURI="http://www.cmlifesciencesinc.com/role/CommitmentandContingenciesScheduleofMaterialPurchaseCommitmentsDetails">
        <link:definition>2444427 - Disclosure - Commitment and Contingencies - Schedule of Material Purchase Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensation" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensation">
        <link:definition>2145110 - Disclosure - Stock-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationTables" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationTables">
        <link:definition>2346308 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationNarrativeDetails">
        <link:definition>2447428 - Disclosure - Stock-Based Compensation - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryofStockOptionActivityDetails" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationSummaryofStockOptionActivityDetails">
        <link:definition>2448429 - Disclosure - Stock-Based Compensation - Summary of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryofExercisePriceRangeDetails" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationSummaryofExercisePriceRangeDetails">
        <link:definition>2449430 - Disclosure - Stock-Based Compensation - Summary of Exercise Price Range (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryofEstimatedFairValueofStockOptionAwardsDetails" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationSummaryofEstimatedFairValueofStockOptionAwardsDetails">
        <link:definition>2450431 - Disclosure - Stock-Based Compensation - Summary of Estimated Fair Value of Stock Option Awards (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationScheduleofRestrictedStockUnitsDetails" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationScheduleofRestrictedStockUnitsDetails">
        <link:definition>2451432 - Disclosure - Stock-Based Compensation - Schedule of Restricted Stock Units (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryofStockBasedCompensationExpenseDetails" roleURI="http://www.cmlifesciencesinc.com/role/StockBasedCompensationSummaryofStockBasedCompensationExpenseDetails">
        <link:definition>2452433 - Disclosure - Stock-Based Compensation - Summary of Stock-Based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RedeemableConvertiblePreferredStock" roleURI="http://www.cmlifesciencesinc.com/role/RedeemableConvertiblePreferredStock">
        <link:definition>2153111 - Disclosure - Redeemable Convertible Preferred Stock</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RedeemableConvertiblePreferredStockTables" roleURI="http://www.cmlifesciencesinc.com/role/RedeemableConvertiblePreferredStockTables">
        <link:definition>2354309 - Disclosure - Redeemable Convertible Preferred Stock (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RedeemableConvertiblePreferredStockScheduleofRedeemablePreferredSharesDetails" roleURI="http://www.cmlifesciencesinc.com/role/RedeemableConvertiblePreferredStockScheduleofRedeemablePreferredSharesDetails">
        <link:definition>2455434 - Disclosure - Redeemable Convertible Preferred Stock - Schedule of Redeemable Preferred Shares (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommonStock" roleURI="http://www.cmlifesciencesinc.com/role/CommonStock">
        <link:definition>2156112 - Disclosure - Common Stock</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommonStockDetails" roleURI="http://www.cmlifesciencesinc.com/role/CommonStockDetails">
        <link:definition>2457435 - Disclosure - Common Stock (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxes">
        <link:definition>2158113 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesTables">
        <link:definition>2359310 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>2460436 - Disclosure - Income Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleofIncomeTaxProvisionDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesScheduleofIncomeTaxProvisionDetails">
        <link:definition>2461437 - Disclosure - Income Taxes - Schedule of Income Tax Provision (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesReconciliationofEffectiveTaxRateDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesReconciliationofEffectiveTaxRateDetails">
        <link:definition>2462438 - Disclosure - Income Taxes - Reconciliation of Effective Tax Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNetDeferredTaxAssetsDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesNetDeferredTaxAssetsDetails">
        <link:definition>2463439 - Disclosure - Income Taxes - Net Deferred Tax Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNetOperatingLossandTaxCreditCarryforwardsDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesNetOperatingLossandTaxCreditCarryforwardsDetails">
        <link:definition>2464440 - Disclosure - Income Taxes - Net Operating Loss and Tax Credit Carryforwards (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDeferredtaxvaluationallowanceDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesDeferredtaxvaluationallowanceDetails">
        <link:definition>2465441 - Disclosure - Income Taxes - Deferred tax valuation allowance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesUnrecognizedTaxBenefitsDetails" roleURI="http://www.cmlifesciencesinc.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails">
        <link:definition>2466442 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossperShare" roleURI="http://www.cmlifesciencesinc.com/role/NetLossperShare">
        <link:definition>2167114 - Disclosure - Net Loss per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossperShareTables" roleURI="http://www.cmlifesciencesinc.com/role/NetLossperShareTables">
        <link:definition>2368311 - Disclosure - Net Loss per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossperShareBasicandDilutedDetails" roleURI="http://www.cmlifesciencesinc.com/role/NetIncomeLossperShareBasicandDilutedDetails">
        <link:definition>2469443 - Disclosure - Net Income (Loss) per Share - Basic and Diluted (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossperSharePotentiallyDilutiveSecuritiesDetails" roleURI="http://www.cmlifesciencesinc.com/role/NetLossperSharePotentiallyDilutiveSecuritiesDetails">
        <link:definition>2470444 - Disclosure - Net Loss per Share - Potentially Dilutive Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformation" roleURI="http://www.cmlifesciencesinc.com/role/SupplementalFinancialInformation">
        <link:definition>2171115 - Disclosure - Supplemental Financial Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationTables" roleURI="http://www.cmlifesciencesinc.com/role/SupplementalFinancialInformationTables">
        <link:definition>2372312 - Disclosure - Supplemental Financial Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationDetails" roleURI="http://www.cmlifesciencesinc.com/role/SupplementalFinancialInformationDetails">
        <link:definition>2473445 - Disclosure - Supplemental Financial Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://www.cmlifesciencesinc.com/role/SubsequentEvents">
        <link:definition>2174116 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventsDetails" roleURI="http://www.cmlifesciencesinc.com/role/SubsequentEventsDetails">
        <link:definition>2475446 - Disclosure - Subsequent Events (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="cmlf_SeriesCRedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesCRedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_LeaseObligationTerm" abstract="false" name="LeaseObligationTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_ProceedsFromGovernmentAssistance" abstract="false" name="ProceedsFromGovernmentAssistance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DebtInstrumentPrincipalForgivenessNumberOfPositionsMaintainedOver24MonthPeriod" abstract="false" name="DebtInstrumentPrincipalForgivenessNumberOfPositionsMaintainedOver24MonthPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_ContractWithCustomerLiabilityPrepayments" abstract="false" name="ContractWithCustomerLiabilityPrepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DebtInstrumentConditionalPrincipalForgivenessMaximum" abstract="false" name="DebtInstrumentConditionalPrincipalForgivenessMaximum" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_RevenueRecognitionStandardPaymentTerm" abstract="false" name="RevenueRecognitionStandardPaymentTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_MergerAdditionalCapitalMember" abstract="true" name="MergerAdditionalCapitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PrincipalForgivenessPhase3Member" abstract="true" name="PrincipalForgivenessPhase3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PrincipalForgivenessPhase2Member" abstract="true" name="PrincipalForgivenessPhase2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_TemporaryEquityCapitalContributionValue" abstract="false" name="TemporaryEquityCapitalContributionValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_TemporaryEquityStockDividendsShares" abstract="false" name="TemporaryEquityStockDividendsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_ConversionOfStockConversionRatio" abstract="false" name="ConversionOfStockConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cmlf_ClassACommonStockEqualsOrExceedsThresholdOneMember" abstract="true" name="ClassACommonStockEqualsOrExceedsThresholdOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_StockIssuedDuringPeriodConversionOfTemporaryEquityAsPartOfReorganizationShares" abstract="false" name="StockIssuedDuringPeriodConversionOfTemporaryEquityAsPartOfReorganizationShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_StockBasedCompExpense" abstract="false" name="StockBasedCompExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_RelatedPartyTransactionFundingCommitmentToBeReceivedMaximum" abstract="false" name="RelatedPartyTransactionFundingCommitmentToBeReceivedMaximum" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_LineOfCreditCovenantTrailingPeriodForMinimumRevenueTargets" abstract="false" name="LineOfCreditCovenantTrailingPeriodForMinimumRevenueTargets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_GovernmentAssistanceCARESActEmployeeRetentionCreditMember" abstract="true" name="GovernmentAssistanceCARESActEmployeeRetentionCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_RedemptionPricePerWarrant" abstract="false" name="RedemptionPricePerWarrant" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cmlf_LineOfCreditCovenantAdjustedQuickRatio" abstract="false" name="LineOfCreditCovenantAdjustedQuickRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cmlf_CapitalLeaseInterestRateStatedPercentage" abstract="false" name="CapitalLeaseInterestRateStatedPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cmlf_AssetsAcquiredUnderCapitalLeases" abstract="false" name="AssetsAcquiredUnderCapitalLeases" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_PublicWarrantsMember" abstract="true" name="PublicWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PrincipalForgivenessPhaseAxis" abstract="true" name="PrincipalForgivenessPhaseAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cmlf_TemporaryEquityStockIssuedDuringPeriodValueStockDividend" abstract="false" name="TemporaryEquityStockIssuedDuringPeriodValueStockDividend" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_OneRenewalPeriodMember" abstract="true" name="OneRenewalPeriodMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNumberOfSharesAvailableForGrantOutstanding" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNumberOfSharesAvailableForGrantOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_ShareBasedPaymentArrangementNumberOfIndividualsGranted" abstract="false" name="ShareBasedPaymentArrangementNumberOfIndividualsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_CumulativeFunding" abstract="false" name="CumulativeFunding" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsTransactionCosts" abstract="false" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsTransactionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DiagnosticTestInstitutionalCustomersMember" abstract="true" name="DiagnosticTestInstitutionalCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_RelatedPartyTSAAgreementMember" abstract="true" name="RelatedPartyTSAAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_MasterLoanAgreementMember" abstract="true" name="MasterLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_BusinessAcquisitionInitialPublicOffering" abstract="false" name="BusinessAcquisitionInitialPublicOffering" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_GovernmentAssistanceAxis" abstract="true" name="GovernmentAssistanceAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cmlf_EarnOutSharesMember" abstract="true" name="EarnOutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ContractWithCustomerAssetAdditions" abstract="false" name="ContractWithCustomerAssetAdditions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DiagnosticTestMember" abstract="true" name="DiagnosticTestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ChangeInContractWithCustomerLiabilityRollForward" abstract="true" name="ChangeInContractWithCustomerLiabilityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cmlf_DebtInstrumentFundingCommitment" abstract="false" name="DebtInstrumentFundingCommitment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_PayorCMember" abstract="true" name="PayorCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_IncreaseDecreaseInDueToFromRelatedParties" abstract="false" name="IncreaseDecreaseInDueToFromRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_EquipmentHeldUnderCapitalLeaseMember" abstract="true" name="EquipmentHeldUnderCapitalLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_SoftwareProviderMember" abstract="true" name="SoftwareProviderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_OrganizationAndDescriptionOfBusinessLineItems" abstract="true" name="OrganizationAndDescriptionOfBusinessLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cmlf_DeferredTaxAssetsTaxDeferredExpenseEmployerTaxes" abstract="false" name="DeferredTaxAssetsTaxDeferredExpenseEmployerTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_GovernmentAssistanceDomain" abstract="true" name="GovernmentAssistanceDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" abstract="false" name="TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_BuildingHeldUnderCapitalLeaseMember" abstract="true" name="BuildingHeldUnderCapitalLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PayorBMember" abstract="true" name="PayorBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PrivateWarrantMember" abstract="true" name="PrivateWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ContractWithCustomerLiabilityAdditions" abstract="false" name="ContractWithCustomerLiabilityAdditions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_A2021PlanMember" abstract="true" name="A2021PlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_SVBAgreementMember" abstract="true" name="SVBAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsReMeasurementPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsReMeasurementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_MinimumThresholdPriceOfCommonStockSpecifiedToSendNoticeOfRedemptionToTheWarrantHolders" abstract="false" name="MinimumThresholdPriceOfCommonStockSpecifiedToSendNoticeOfRedemptionToTheWarrantHolders" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cmlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAfterTermOfOptionsNumber" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAfterTermOfOptionsNumber" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_EquipmentSupplierMember" abstract="true" name="EquipmentSupplierMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_A2017StockIncentivePlanMember" abstract="true" name="A2017StockIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_DebtInstrumentPeriodicPaymentPrincipalAndInterest" abstract="false" name="DebtInstrumentPeriodicPaymentPrincipalAndInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" abstract="false" name="ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_TemporaryEquityCapitalContribution" abstract="false" name="TemporaryEquityCapitalContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_NoncashLeaseExpense" abstract="false" name="NoncashLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_SupplierBMember" abstract="true" name="SupplierBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_SoftwareDevelopmentCostsIncurredButNotYetPaid" abstract="false" name="SoftwareDevelopmentCostsIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DebtInstrumentPercentageOfExistingIssuedAndOutstandingShares" abstract="false" name="DebtInstrumentPercentageOfExistingIssuedAndOutstandingShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cmlf_LineOfCreditFacilityCovenantLiquidityThreshold" abstract="false" name="LineOfCreditFacilityCovenantLiquidityThreshold" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_RedemptionOnWarrantHolders" abstract="false" name="RedemptionOnWarrantHolders" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cmlf_PaymentForSettlementOfUnvestedStockAppreciationRights" abstract="false" name="PaymentForSettlementOfUnvestedStockAppreciationRights" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_WarrantLiability" abstract="false" name="WarrantLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_PrivatePlacementWarrantsMember" abstract="true" name="PrivatePlacementWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ClassOfWarrantOrRightTargetSharePriceOfWarrantsOrRightsForRedemption" abstract="false" name="ClassOfWarrantOrRightTargetSharePriceOfWarrantsOrRightsForRedemption" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cmlf_OrganizationAndDescriptionOfBusinessTable" abstract="true" name="OrganizationAndDescriptionOfBusinessTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cmlf_SeriesA1RedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesA1RedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ClassACommonStockEqualsOrExceedsThresholdTwoMember" abstract="true" name="ClassACommonStockEqualsOrExceedsThresholdTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_LetterOfCreditDepositRequiredPercentage" abstract="false" name="LetterOfCreditDepositRequiredPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cmlf_EffectiveIncomeTaxRateReconciliationUnrealizedFairMarketValueGainOnWarrants" abstract="false" name="EffectiveIncomeTaxRateReconciliationUnrealizedFairMarketValueGainOnWarrants" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cmlf_PayorDMember" abstract="true" name="PayorDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ShareBasedCompensationModificationReclassification" abstract="false" name="ShareBasedCompensationModificationReclassification" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DebtInstrumentPrincipalForgivenessNumberOfPositionsCreatedOver24MonthPeriod" abstract="false" name="DebtInstrumentPrincipalForgivenessNumberOfPositionsCreatedOver24MonthPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_BusinessAcquisitionShareConversionRatio" abstract="false" name="BusinessAcquisitionShareConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cmlf_RelatedPartyExpensesMember" abstract="true" name="RelatedPartyExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_MonthToMonthOperatingLeaseRentExpense" abstract="false" name="MonthToMonthOperatingLeaseRentExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_PrincipalForgivenessPhase4Member" abstract="true" name="PrincipalForgivenessPhase4Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_EmployeeStockOptionAndRestrictedStockUnitsMember" abstract="true" name="EmployeeStockOptionAndRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_LineOfCreditFacilityCovenantOutstandingBorrowings" abstract="false" name="LineOfCreditFacilityCovenantOutstandingBorrowings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_ContractWithCustomerAssetRevenueRecognized" abstract="false" name="ContractWithCustomerAssetRevenueRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_CommonStockThresholdConsecutiveTradingDays" abstract="false" name="CommonStockThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_DebtInstrumentCovenantJobCreationAndRetentionMilestonePeriod" abstract="false" name="DebtInstrumentCovenantJobCreationAndRetentionMilestonePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_PublicWarrantMember" abstract="true" name="PublicWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PaymentOfDeferredPayrollTaxes" abstract="false" name="PaymentOfDeferredPayrollTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_LeaseRenewalTerm" abstract="false" name="LeaseRenewalTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_CommonStockThresholdNumberOfTradingDaysBeforeNoticeOfRedemption" abstract="false" name="CommonStockThresholdNumberOfTradingDaysBeforeNoticeOfRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_OperatingLossCarryforwardsSubjectToExpiration" abstract="false" name="OperatingLossCarryforwardsSubjectToExpiration" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DebtInstrumentNumberOfConsecutiveMonthlyPaymentsRequired" abstract="false" name="DebtInstrumentNumberOfConsecutiveMonthlyPaymentsRequired" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_PrincipalForgivenessPhase1Member" abstract="true" name="PrincipalForgivenessPhase1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ConnecticutOfficeSpaceLeaseMember" abstract="true" name="ConnecticutOfficeSpaceLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_OperatingLossCarryforwardsNotSubjectToExpiration" abstract="false" name="OperatingLossCarryforwardsNotSubjectToExpiration" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DECDLoanAgreementMember" abstract="true" name="DECDLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_PayorAMember" abstract="true" name="PayorAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_TemporaryEquityEliminationAsPartOfReorganizationShares" abstract="false" name="TemporaryEquityEliminationAsPartOfReorganizationShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_DiagnosticTestSelfPayMember" abstract="true" name="DiagnosticTestSelfPayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_RelatedPartyServiceAgreementsMember" abstract="true" name="RelatedPartyServiceAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ChangeInFairMarketValueOfWarrantAndEarnOutContingentLiabilities" abstract="false" name="ChangeInFairMarketValueOfWarrantAndEarnOutContingentLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_GovernmentAssistanceCARESActProviderReliefFundMember" abstract="true" name="GovernmentAssistanceCARESActProviderReliefFundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_DiagnosticTestThirdPartyInsuranceMember" abstract="true" name="DiagnosticTestThirdPartyInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ChangeInContractWithCustomerAssetRollForward" abstract="true" name="ChangeInContractWithCustomerAssetRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cmlf_ConversionRatio" abstract="false" name="ConversionRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cmlf_LeaseCancellationPeriod" abstract="false" name="LeaseCancellationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cmlf_CapitalLeasesOfLesseeInterestRate" abstract="false" name="CapitalLeasesOfLesseeInterestRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cmlf_PrincipalForgivenessPhaseDomain" abstract="true" name="PrincipalForgivenessPhaseDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_SupplierAMember" abstract="true" name="SupplierAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_Sema4OpCoIncMember" abstract="true" name="Sema4OpCoIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_TwoRenewalPeriodsMember" abstract="true" name="TwoRenewalPeriodsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_SeriesA2RedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesA2RedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_EffectiveIncomeTaxRateReconciliationNondeductibleExpensePayForCoveredEmployeesLimitationPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpensePayForCoveredEmployeesLimitationPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cmlf_StockIssuedDuringPeriodConversionOfTemporaryEquityAsPartOfReorganization" abstract="false" name="StockIssuedDuringPeriodConversionOfTemporaryEquityAsPartOfReorganization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_NumberOfDaysForWrittenNoticeOfRedemption" abstract="false" name="NumberOfDaysForWrittenNoticeOfRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_LeaseNumberOfRenewalTerms" abstract="false" name="LeaseNumberOfRenewalTerms" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_FurnitureFixturesAndOtherEquipmentMember" abstract="true" name="FurnitureFixturesAndOtherEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_ReverseRecapitalizationExchangeRatio" abstract="false" name="ReverseRecapitalizationExchangeRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cmlf_MaterialsServicesAndReagentsProviderMember" abstract="true" name="MaterialsServicesAndReagentsProviderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_AccruedBonusCurrent" abstract="false" name="AccruedBonusCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_SeriesBRedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesBRedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_GeneDxIncMember" abstract="true" name="GeneDxIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_MasterLeaseAgreementMember" abstract="true" name="MasterLeaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_NoncashRedeemablePreferredStockDividends" abstract="false" name="NoncashRedeemablePreferredStockDividends" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_DebtInstrumentPrincipalForgivenessNumberOfPositionsCreatedAndMaintainedOver24MonthPeriod" abstract="false" name="DebtInstrumentPrincipalForgivenessNumberOfPositionsCreatedAndMaintainedOver24MonthPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_CommonStockThresholdTradingDays" abstract="false" name="CommonStockThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cmlf_DebtInstrumentPrincipalForgivenessAverageCompensationForPositionsCreatedOver24MonthPeriod" abstract="false" name="DebtInstrumentPrincipalForgivenessAverageCompensationForPositionsCreatedOver24MonthPeriod" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cmlf_ResearchAndExperimentalTaxCreditCarryforwardMember" abstract="true" name="ResearchAndExperimentalTaxCreditCarryforwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cmlf_WarrantsToPurchasePublicWarrants" abstract="false" name="WarrantsToPurchasePublicWarrants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cmlf_EarnOutRestrictedStockUnitsMember" abstract="true" name="EarnOutRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
