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<link:definition>1020 - Disclosure - STOCKHOLDERS' EQUITY (Tables)</link:definition>
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<link:definition>1024 - Disclosure - NET LOSS PER SHARE APPLICABLE TO COMMON SHAREHOLDER - Computation of income (loss) per share (Detail)</link:definition>
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<link:definition>1026 - Disclosure - WARRANT LIABILITY AND FAIR VALUE MEASUREMENTS - Conversion Option - Valuation Methodology (Detail)</link:definition>
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<link:definition>1027 - Disclosure - WARRANT LIABILITY AND FAIR VALUE MEASUREMENTS - Conversion Option - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail)</link:definition>
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<link:definition>1028 - Disclosure - WARRANT LIABILITY AND FAIR VALUE MEASUREMENTS - Conversion Option - Schedule of Changes in Level 3 Liabilities Measured at Fair Value (Detail)</link:definition>
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<element name="ValuationMethodologyTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ValuationMethodologyTableTextBlock" substitutionGroup="xbrli:item" />
<element name="StockbasedCompensationExpensesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_StockbasedCompensationExpensesTableTextBlock" substitutionGroup="xbrli:item" />
<element name="MarkerTherapeuticsIncMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_MarkerTherapeuticsIncMember" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightWarrantsExpirationTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightWarrantsExpirationTerm" substitutionGroup="xbrli:item" />
<element name="CommonStockWarrantsLiabilityTreatmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_CommonStockWarrantsLiabilityTreatmentMember" substitutionGroup="xbrli:item" />
<element name="SharePurchaseWarrantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_SharePurchaseWarrantsMember" substitutionGroup="xbrli:item" />
<element name="WeightedAverageInputsBeforeModificationMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_WeightedAverageInputsBeforeModificationMember" substitutionGroup="xbrli:item" />
<element name="WeightedAverageInputsAfterModificationMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_WeightedAverageInputsAfterModificationMember" substitutionGroup="xbrli:item" />
<element name="NumberOfWarrantExercisedForCash" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_NumberOfWarrantExercisedForCash" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightsOutStandingIssuedWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightsOutStandingIssuedWeightedAverageExercisePrice" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightsOutstandingExercisedWeightedAverageExercisedForCash" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightsOutstandingExercisedWeightedAverageExercisedForCash" substitutionGroup="xbrli:item" />
<element name="NumberOfWarrantIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_NumberOfWarrantIssued" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightsOutStandingWeightedAverageRemainingContractualLife" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightsOutStandingWeightedAverageRemainingContractualLife" substitutionGroup="xbrli:item" />
<element name="NumberOfWarrantExpiredOrCancelled" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_NumberOfWarrantExpiredOrCancelled" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightsOutstandingCashlessExercisedWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightsOutstandingCashlessExercisedWeightedAverageExercisePrice" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightsOutstandingExpiredOrCancelledWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightsOutstandingExpiredOrCancelledWeightedAverageExercisePrice" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightOutStandingIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mrkr_ClassOfWarrantOrRightOutStandingIntrinsicValue" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ClassOfWarrantOrRightsOutStandingWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mrkr_ClassOfWarrantOrRightsOutStandingWeightedAverageExercisePrice" substitutionGroup="xbrli:item" />
<element name="NumberOfWarrantsCashlessExercised" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mrkr_NumberOfWarrantsCashlessExercised" substitutionGroup="xbrli:item" />
<element name="CommonStockCapitalSharesReservedForFutureIssuanceTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_CommonStockCapitalSharesReservedForFutureIssuanceTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="ExerciseOfStockWarrantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_ExerciseOfStockWarrantsMember" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightExerciseAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightExerciseAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="ClassOfWarrantOrRightExerciseDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_ClassOfWarrantOrRightExerciseDomain" substitutionGroup="xbrli:item" />
<element name="CommonStockCapitalSharesReservedForFutureIssuanceLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_CommonStockCapitalSharesReservedForFutureIssuanceLineItems" substitutionGroup="xbrli:item" />
<element name="EasternCapitalLimitedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_EasternCapitalLimitedMember" substitutionGroup="xbrli:item" />
<element name="ArrangementsAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_ArrangementsAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="ArrangementsDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_ArrangementsDomain" substitutionGroup="xbrli:item" />
<element name="ConsultingArrangementsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mrkr_ConsultingArrangementsMember" substitutionGroup="xbrli:item" />
</schema>
