RNA Module #2 Exam Questions and Answers Updated 2026

RNA Module #2 Exam Questions and
Answers Updated 2026
2BtypesBofBsmallBRNABmoleculesBinvolvedBinBgeneBregulation?B-BAnswersiRNAsBandBmiRNAs



AnBorganismBhasBaBAB+BTBcontentBofB64%.BWhatBisBtheBpercentageBforBC?B-BAnswer18



AnBorganismBhasBaBTBcontentBofB22%.BWhatBisBtheBpercentageBforBC?B-BAnswer28



ThisBenzymeBlinksBtwoBseparateBlengthsBofBnucleicBacidBbyBcreatingBaBphosphodiesterBbondB
betweenBthem.B-BAnswerDNABligase



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



IsBthisBsequenceBRNABorBDNA?BHowBcanByouBtell?"B-
BAnswerRNABbecauseBDNABdoesBnotBcontainBuracil



Meselson-
StahlBExperiment,BwhatBhypotheticalBformBofBDNABreplicationBresultsBinBtheBsameBDNABdensi
tyBdistributionBasBtheBsemiconservativeBmethodBafterBtheBfirstBcellBdivision,BbutBwasBnotBsup
portedBuponBtheBsecondBcellBdivision?B-BAnswerDispersiveBreplication



TheBbondsBthatBconnectBnucleotidesBinBaBstrandBareBcallB_________Bbonds.B-
BAnswerPhosphodiester



CanBRNABactBasBgeneticBmaterial,BifBsoBnameBoneBexBofBanBorganismsB-
BAnswerYes,Bretrovirus



TypeBtheBcomplementaryBstrandBtoBtheBfollowingBsingle-strandedBDNA.



B5'B-BATAGCATGGGCCATACGATTACTGAB-B3'B-BAnswer3'BTATCGTACCCGGTATGCTAATGACTB5'



ThisBorganicBsubunitBisBtheBmonomerBfromBwhichBnucleicBacidBisBformedB-
BAnswerNucleotide,BperBEA

,HersheyBandBchaseBlabeledBDNABusingBthisBradioactiveBatom.B-BAnswerPhosphorus



InBEukaryoticBreplicationBthereBisBaBfundamentalBlevelBofBcomplexityBbecauseBofBwhatBprotei
ns?B-BAnswerHistoneBproteins



ThisBGreekBletterBdescribesBtheBshapeBofBaBbacterialBchromosomeBmid-
wayBthroughBreplication.B-BAnswerTheta



TheBnitrogenousBbaseBofBaBnucleotideBmayBbeBofBtwoBtypesB-BaBpurineBorBaBpyrimidine.B

Adenine________

Uracil________

GuanineB_____________

Thymine____________

Cytosine__________B-BAnswerPurineB

PyrmidineB

PurineB

Pyrmidine

Pyrmidine



UracilBcontains________asBsugar.B-BAnswerRibose



ThisBtermBdescribesBtheBsequenceBofBnucleotidesBwhichBdirectBtheBformationBofBaBnewBnucl
eicBacidBstrand.B-BAnswerParentBstrandBperBEA



WriteBtheBanticodon,BwithBcorrectBpolarity,BofBallBtRNAsBthatBwillBbindBtoBtheBmRNABcodonB
5'BUCGB3',BconsideringBwobble-baseBpairingBrules.B-BAnswer3'BACGB5'B(exact)B

WobbeBcodons:B3'BACCB5',B3'BACUB5',B3'BACAB5'



ThisBnewBstrandBofBDNABhasBitsB3'BendBorientedBinBtheBoppositeBdirectionBasBthatBinBwhich
BtheBreplicationBforkBtravels.B-BAnswerLaggingBstrand



ThisBnewBstrandBofBDNABhasBitsB3'BendBorientedBinBtheBsameBdirectionBasBtheBreplicationBf
orkBtravels.B-BAnswerLeadingBstrand

, TheBconceptBthatBgeneticBinformationBpassesBfromBDNABtoBRNABtoBproteinBisBcalledB-
BAnswerTheBcentralBdogma



WhileBactuallyBaBformBofBRNABpolymerase,BthisBenzymeBlaysBdownBtheBinitialBnucleotidesBto
BsetBupBaBconditionBwhereBDNABpolymeraseBcanBthenBtakeBoverBforBreplication.B-
BAnswerPrimase



RNABpolymeraseBmustBbindBtoBaBregionBofBDNABcalledBa(n)B__________BinBorderBtoBbeginBt
ranscription.B-BAnswerPromoter



ListB3BrequirementsBofBanyBsubstanceBthatBbeBaB"geneticBmaterial"B-BAnswerReplicationB

StorageB

Expression



ThisBmethodBofBreplicationBpreservesBtheBcovalentBlinksBonBoneBstrandBofBDNABbutBallowsBp
ermanentBseparationBofBtheB"parental"BdoubleBhelixBtoBformBtwoBtemplates.B-
BAnswerSemiconservativeBreplication



WhatBisBsemiconservativeBreplicationB?B-
BAnswerEachBofBtheBparentBnucleotideBstrandsBremainsBintactB(conserved),BbutBtheyBareBnow
BboundBtoBnewBnucleotideBstrandsBinsteadBofBeachBother.



InBtranscription,BnucleotidesBareBalwaysBaddedBtoBtheB_____endBofBtheBelongatingBstrand.B-
BAnswer3'



WhereasBtheBnucleotideBstrandBusedBforBtranscriptionBisBtermedBthe____________BtheBnontr
anscribedBstrandBisBcalledBtheB_____________B.B-BAnswerTemplateBstrandB

NontemplateBstrand



EukaryotesBhaveBtwoBofBtheseBperBchromosome;BprokaryotesBhaveBnone.B-BAnswerTelomeres



ShortB"bursts"BofBDNABsynthesisBthatBestablishBtheBlaggingBstrandBareBcalledBthese.B-
BAnswerOkazakiBfragments