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Exam (elaborations)

Module #2 Exam Questions and Answers Updated 2026

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Module #2 Exam Questions and Answers Updated 2026

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Module #2 Exam Questions and
Answers Updated 2026
2MtypesMofMsmallMRNAMmoleculesMinvolvedMinMgeneMregulation?M-
MAnswerMsiRNAsMandMmiRNAs



AnMorganismMhasMaMAM+MTMcontentMofM64%.MWhatMisMtheMpercentageMforMC?M-
MAnswerM18



AnMorganismMhasMaMTMcontentMofM22%.MWhatMisMtheMpercentageMforMC?M-
MAnswerM28



ThisMenzymeMlinksMtwoMseparateMlengthsMofMnucleicMacidMbyMcreatingMaMphosphodiest
erMbondMbetweenMthem.M-MAnswerMDNAMligase



"5'...GGAGCUCGUUGUAUU...3'



IsMthisMsequenceMRNAMorMDNA?MHowMcanMyouMtell?"M-
MAnswerMRNAMbecauseMDNAMdoesMnotMcontainMuracil



Meselson-
StahlMExperiment,MwhatMhypotheticalMformMofMDNAMreplicationMresultsMinMtheMsameMD
NAMdensityMdistributionMasMtheMsemiconservativeMmethodMafterMtheMfirstMcellMdivision,
MbutMwasMnotMsupportedMuponMtheMsecondMcellMdivision?M-
MAnswerMDispersiveMreplication



TheMbondsMthatMconnectMnucleotidesMinMaMstrandMareMcallM_________Mbonds.M-
MAnswerMPhosphodiester



CanMRNAMactMasMgeneticMmaterial,MifMsoMnameMoneMexMofManMorganismsM-
MAnswerMYes,Mretrovirus



TypeMtheMcomplementaryMstrandMtoMtheMfollowingMsingle-strandedMDNA.



M5'M-MATAGCATGGGCCATACGATTACTGAM-M3'M-
MAnswerM3'MTATCGTACCCGGTATGCTAATGACTM5'

,ThisMorganicMsubunitMisMtheMmonomerMfromMwhichMnucleicMacidMisMformedM-
MAnswerMNucleotide,MperMEA



HersheyMandMchaseMlabeledMDNAMusingMthisMradioactiveMatom.M-MAnswerMPhosphorus



InMEukaryoticMreplicationMthereMisMaMfundamentalMlevelMofMcomplexityMbecauseMofMwh
atMproteins?M-MAnswerMHistoneMproteins



ThisMGreekMletterMdescribesMtheMshapeMofMaMbacterialMchromosomeMmid-
wayMthroughMreplication.M-MAnswerMTheta



TheMnitrogenousMbaseMofMaMnucleotideMmayMbeMofMtwoMtypesM-
MaMpurineMorMaMpyrimidine.M

Adenine________

Uracil________

GuanineM_____________

Thymine____________

Cytosine__________M-MAnswerMPurineM

PyrmidineM

PurineM

Pyrmidine

Pyrmidine



UracilMcontains________asMsugar.M-MAnswerMRibose



ThisMtermMdescribesMtheMsequenceMofMnucleotidesMwhichMdirectMtheMformationMofMaM
newMnucleicMacidMstrand.M-MAnswerMParentMstrandMperMEA



WriteMtheManticodon,MwithMcorrectMpolarity,MofMallMtRNAsMthatMwillMbindMtoMtheMmR
NAMcodonM5'MUCGM3',MconsideringMwobble-baseMpairingMrules.M-
MAnswerM3'MACGM5'M(exact)M

WobbeMcodons:M3'MACCM5',M3'MACUM5',M3'MACAM5'

, ThisMnewMstrandMofMDNAMhasMitsM3'MendMorientedMinMtheMoppositeMdirectionMasMth
atMinMwhichMtheMreplicationMforkMtravels.M-MAnswerMLaggingMstrand



ThisMnewMstrandMofMDNAMhasMitsM3'MendMorientedMinMtheMsameMdirectionMasMtheMr
eplicationMforkMtravels.M-MAnswerMLeadingMstrand



TheMconceptMthatMgeneticMinformationMpassesMfromMDNAMtoMRNAMtoMproteinMisMcalle
dM-MAnswerMTheMcentralMdogma



WhileMactuallyMaMformMofMRNAMpolymerase,MthisMenzymeMlaysMdownMtheMinitialMnucle
otidesMtoMsetMupMaMconditionMwhereMDNAMpolymeraseMcanMthenMtakeMoverMforMrepli
cation.M-MAnswerMPrimase



RNAMpolymeraseMmustMbindMtoMaMregionMofMDNAMcalledMa(n)M__________MinMorderM
toMbeginMtranscription.M-MAnswerMPromoter



ListM3MrequirementsMofManyMsubstanceMthatMbeMaM"geneticMmaterial"M-
MAnswerMReplicationM

StorageM

Expression



ThisMmethodMofMreplicationMpreservesMtheMcovalentMlinksMonMoneMstrandMofMDNAMbut
MallowsMpermanentMseparationMofMtheM"parental"MdoubleMhelixMtoMformMtwoMtemplate
s.M-MAnswerMSemiconservativeMreplication



WhatMisMsemiconservativeMreplicationM?M-
MAnswerMEachMofMtheMparentMnucleotideMstrandsMremainsMintactM(conserved),MbutMthe
yMareMnowMboundMtoMnewMnucleotideMstrandsMinsteadMofMeachMother.



InMtranscription,MnucleotidesMareMalwaysMaddedMtoMtheM_____endMofMtheMelongatingMs
trand.M-MAnswerM3'



WhereasMtheMnucleotideMstrandMusedMforMtranscriptionMisMtermedMthe____________Mth
eMnontranscribedMstrandMisMcalledMtheM_____________M.M-MAnswerMTemplateMstrandM

NontemplateMstrand

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