BIOLOGY 101 EXAM 3 QUESTIONS WITH CORRECT ANSWERS 2026

BIOLOGY 101 EXAM 3 QUESTIONS WITH
CORRECT ANSWERS 2026


chromosomesgconsistgofg______g&g__________.g-gCORRECTgANSWERSg-DNAg&gProtein



chromosomesgreplicateg(priorg/gafter)gcellgdivision.g-gCORRECTgANSWERSg-prior



DoesgDNAgvarygamonggspecies?g-gCORRECTgANSWERSg-Yes



FredrickgGriffithgfiguredgoutgthegsourcegofghereditygbygstudyingg___________.g-
gCORRECTgANSWERSg-bacteria




Heatgkilledgremainsgofgthegpathogenicgstraingweregmixedgwithglivinggcellsgofgnon-
pathogenicgstraingandgsomegofgtheglivinggcellsgbecameg__________.g-gCORRECTgANSWERSg-
pathogenic



Onegstraingproducedgagheritablegchangegingthegothergstraing-gCORRECTgANSWERSg-
TransforminggPrinciple



TransforminggPrinciplegwasgdonegbyg___________g(lastgname).g-gCORRECTgANSWERSg-Griffith



Avery,gMacLeodgandgMcCartygdidgangexperimentgwheregtheygremovegthegprotein:gDidgthegtransfor
mationgstillgoccur?g-gCORRECTgANSWERSg-Yes



Avery,gMacLeodgandgMcCartygdidgangexperimentgwheregtheygdestroyedgDNA:gDidgthegtransformati
ongstillgoccur?g-gCORRECTgANSWERSg-No

,Avery,gMacLeodgandgMcCartygthroughgexperimentationgrealizedgthatgDNAgwasgtheg____________
g______________.g-gCORRECTgANSWERSg-transformationgmaterial




AgVirusgthatginfectsgbacteria,gbyginjectinggRNAgorgDNAgthatgbecomegpartgofgthegbacteria'sgDNA.g-
gCORRECTgANSWERSg-Bacteriophages




AlfredgHersheygandgMarthagChasegstainedgthegproteingcoatgofgthegvirusgnotgfoundgingbacteriumg-
gthusgmakinggthegnewgviralgparticlesginsidegthegcellg(ablegtogbegfoundg/gnotgablegtogbegfound).g-


gCORRECTgANSWERSg-notgablegtogbegfound




AlfredgHersheygandgMarthagChase'sgsecondgexperimentgwasgwheregtheygstainedgthegDNAgofgthegvi
rusgingthegbacteriumg-
gthusgmakinggthegnewgviralgparticlesginsidegthegcellg(ablegtogbegfoundg/gnotgablegtogbegfound).g-


gCORRECTgANSWERSg-ablegtogbegfound




ErwingChargaffgfoundgthatgingnitrogenousgbasesgthegamountgofgAg=g____,gandgthegamountgofgCg=g_
____.g-gCORRECTgANSWERSg-TgG



DNAgisgingthegshapegofgag_______g________.g-gCORRECTgANSWERSg-DoublegHelix



DNAghasgag(uniformg/gun-uniform)gdiameter.g-gCORRECTgANSWERSg-uniform



ThegbackbonesgofgDNAgthatgaregequidistantgthroughoutgtheghelixgaregmadegofg________g_______.
g-gCORRECTgANSWERSg-sugargphosphates




DNAgisg(parallelgorganti-parallel)?g-gCORRECTgANSWERSg-anti-parallel



Adeninegpairsgwithg-gCORRECTgANSWERSg-Thymine

, Cytosinegpairsgwithg-gCORRECTgANSWERSg-Guanine



Pairinggisgcalledg___________gbasegpairingg-gCORRECTgANSWERSg-complementary



DNAgisg:g______ghelix,g______-handed,g_____-parallel,ghasg__________gbasegpairing.g-
gCORRECTgANSWERSg-double,gright,ganti,gcomplementary




AdeninegpairsgwithgThyminegbyg___g(#)ghydrogengbonds.g-gCORRECTgANSWERSg-2



CytosinegpairsgwithgGuaninegbyg____(#)ghydrogengbonds.g-gCORRECTgANSWERSg-3



Replicationgisgexplainedgbyg_______gpairingg-gCORRECTgANSWERSg-base



eachgstrandgisgagtemplategforgthegothergbecausegofgcomplementarygbasegpairingg-gtruegorgfalse?g-
gCORRECTgANSWERSg-true




Semi-conservativegreplicationgisgwhen:gHydrogengbondsgareg________,gstrandsg_____-
windgandg________,gnewgbasesgobservegbasegpairinggrules,gresultgisg____g(#)gidenticalgcopies.g-
gCORRECTgANSWERSg-broken,gun-windgandgseperate,g2




Ingsemiconservativegreplicationgsaysgthatgeachgofgthegoldgstrandgmakesgagnewghalfgandgaftergonegr
oundgofgreplicationgtheregisgonegoldgchaingandgonegnewgchain.gTruegorgFalse?g-
gCORRECTgANSWERSg-True




Strandgunwinds/gopensgandgreplicationgbeginsgatgangorigingofgreplication.gThisgisgcalled:g-
gCORRECTgANSWERSg-Initiation