Test Bank For Genetics Analysis and Principles, 4th Edition All Chapters - 9781260240856.pdf

CHAPTER 14—DNA STRUCTURE, REPLICATION, AND ORGANIZATION
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MULTIPLEfCHOICE
1.Thefgeneticfmaterialfoffallflivingforganismsfis
a. protein.
b. deoxyribonucleicfacid.
c. ribonucleicfacid.
d. glycoprotein.
e. polypeptide.
ANS: B PTS: 1 DIF: Easy
OBJ: Bloom'sfTaxonomy:fKnowledge TOP: 14.0fWHYfITfMATTERS

2. WatsonfandfCrickfareffamousfforfdetermining
a. thefpresencefoffnucleinf(DNA)finfpusfcells.
b. thefrolefoffDNAfinfcells.
c. whatfchemicalfcomponentsfarefinfDNA.
d. thefthree-dimensionalfstructurefoffDNA.
e. theflocationfoffDNAfinfcells.
ANS: D PTS: 1 DIF: Easy
OBJ: Bloom'sfTaxonomy:fComprehension TOP: 14.0fWHYfITfMATTERS


3.
Priorftofthef1940s,fmanyfbiologistsfthoughtfthatf____,fbeingfmadefupfoff20ftypesfoff____,fwasfthefbest
candidatefforfgeneticfmaterial.
f

a. protein;faminofacids
b. DNA;faminofacids
c. protein;fnucleotides
d. DNA;fnucleotides
e. RNA;fnucleotides
ANS: A PTS: 1 DIF: Easy
OBJ: Bloom'sfTaxonomy:fKnowledge
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

4. WhatfhappensfwhenflivingfRfstrainfStreptococcusfpneumoniaefbacteriafarefmixedfwithfheat-
killedfSfstrainfStreptococcusfpneumoniaefbacteria?
a. ThefSfstrainfbacteriafcomefbackftoflife.
b. ThefRfstrainfbacteriafarefkilled,fandfthefSfstrainfbacteriafremainfdead.
c. ThefRfstrainfbacteriafareftransformedfintofSfstrainfbacteria.
d. ThefSfstrainfbacteriafareftransformedfintofRfstrainfbacteria.
e. ThefRfstrainfbacteriafarefkilled,fandfthefSfstrainfbacteriafcomefbackftoflife.
ANS: C PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fComprehension
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

,5.
TheftransformingfprinciplefthatfGriffithfdescribedffromfhisfworkfwithfStreptococcusfpneumoniaefba
cteriafturnedfoutftofbef____.
a. afpolysaccharidefcapsule
b. afphospholipid
c. protein
d. RNA
e. DNA
ANS: E PTS: 1 DIF: Easy
OBJ: Bloom'sfTaxonomy:fKnowledge
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

6.
Avery,fMcLeod,fandfMcCartyfcontinuedfGriffith’sfworkfwithfS.fpneumoniaefandfconcludedffromfthe
irfexperimentsfthatfDNAfwasfthefhereditaryfmaterial.fWhatfwouldfhappenftofmicefafterfinjectionfoffheat-
killedfvirulentfbacteriafmixedfwithflivefavirulentfbacteriafafterftreatmentfwithfproteinasefiffproteinfwasfthefher
editaryfmaterialfinsteadfoffDNA?
a. thefmicefwouldflive
b. thefmicefwouldfdie
c. thefmicefwouldfgetfsickfbutfrecover
d. thefmicefwouldfgrowftumors
e. thefmicefwouldfdegradefthefprotein
ANS: A PTS: 1 DIF: Difficult
OBJ: Bloom'sfTaxonomy:fApplication
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

7.
Inftheirfexperimentsftofdetermineftheftransformingfprinciple,fAvery,fMacLeod,fandfMcCartyfusedfen
zymesfthatfbreakfdownf____.
a. protein,fDNA,fandfRNA
b. proteinfandfRNA
c. DNA
d. protein,flipids,fandfRNA
e. lipidsfandfDNA
ANS: A PTS: 1 DIF: Difficult
OBJ: Bloom'sfTaxonomy:fKnowledge
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

8. InfthefHersheyfandfChasefexperiment,fthefpelletfwasfradioactivefafterfbacteriafhadfbeenfinfectedfwithf32P-
labeledfvirusesfandfcentrifuged.fWhy?
a Bacteriafwerefcentrifugedftofformfthefpellet,fandftheyfhadfincorporatedfradioactivefproteinsfintoftheirfDN
. A.
b Bacteriafwerefcentrifugedftofformfthefpellet,fandftheyfhadfincorporatedfradioactivefDNA.
.
c Virusesfwerefcentrifugedftofformfthefpellet,fandftheyfhadfincorporatedfradioactivefproteinsffromfthefbacte
. rialfDNA.

, d Bacteriafwerefcentrifugedftofformfthefpellet,fandftheyfhadfincorporatedfradioactivefproteinsfintoftheirfcellf
. membranes.
e Virusesfwerefcentrifugedftofformfthefpellet,fandftheyfhadfincorporatedfradioactivefDNA.
.
ANS: B PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fComprehensionf|fBloom'sfTaxonomy:fSynthesis
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE


9.
WhenfHersheyfandfChaseflabeledfvirusesfwithfradioactivefphosphorus,ftheyfconcludedfthatfthefvirusf
injectsfDNAfandfnotfproteinfintofitsfhostfbecausefthef
a. radioactivefproteinfendedfupfinsidefthefbacterium
b. radioactivefDNAfendedfupfinsidefthefbacterium
c. bothfradioactivefDNAfandfproteinfendedfupfinsidefthefbacterium
d. neitherfradioactivefDNAfnorfproteinfendedfupfinsidefthefbacterium
e. entirefvirusfendedfupfinsidefthefbacterium
ANS: B PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fKnowledge
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

10. ThefT2fbacteriophagesfusedfinfthefHersheyfandfChasefexperimentfarefmadefoffwhat?
a. DNA
b. RNAfandfprotein
c. protein,fphospholipid,fandfDNA
d. DNAfandfprotein
e. protein,fphospholipid,fDNA,fandfRNA
ANS: D PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fAnalysis
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

11. InfthefHersheyfandfChasefexperiment,f32Pfwasfusedftoflabelf____fandf35Sfwasfusedftoflabelf____.
a. RNA;fprotein
b. protein;fDNA
c. phospholipids;fprotein
d. protein;fphospholipids
e. DNA;fprotein
ANS: E PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fComprehension
TOP: 14.1fESTABLISHINGfDNAfASfTHEfHEREDITARYfMOLECULE

12. EachfDNAfnucleotidefisfmadefupfof
a. afsix-carbonfsugar,fafphosphatefgroup,fandfonefofftwentyfaminofacids.
b. affive-carbonfsugar,fafnitrogenousfbase,fandfonefofftwentyfaminofacids.
c. affive-carbonfsugar,fafphosphatefgroup,fandfonefofffourfnitrogenousfbases.
d. afsix-carbonfsugar,fafnitrogenousfbase,fandfonefofffourfaminofacids.
e. affive-carbonfsugar,fafphosphatefgroup,fandfonefofffourfaminofacids.
ANS: C PTS: 1 DIF: Moderate

, OBJ: Bloom'sfTaxonomy:fKnowledge TOP: 14.2fDNAfSTRUCTURE

13. AdjacentfnucleotidesfonfafstrandfoffDNAfarefconnectedftofeachfotherfbyfa(n)f____.
a. hydrophobicfinteraction
b. phosphodiesterfbond
c. hydrogenfbond
d. peptidefbond
e. ionicfbond
ANS: B PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fKnowledge TOP: 14.2fDNAfSTRUCTURE


14. IffafstretchfoffhumanfdoublefstrandedfDNAfcontainsf47%fGf+fC,fthen
a. itfcontainsf47%fAf+fT
b. therefarefmorefpyrimidinesfthanfpurines
c. therefarefmorefpurinesfthanfpyrimidines
d. itfcontainsf53%fAf+fT
e. therefarefnofgenesfinfthisfstretchfoffDNA
ANS: D PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fApplication TOP: 14.2fDNAfSTRUCTURE

15.
ThefDNAfoffanforganismfisfstudiedfandffoundftofcontainf14%fguanine.fThisforganismfshouldfhavef__
__%fthyminefandf____%fcytosinefinfitsfDNA.
a. 86;f14
b. 14;f36
c. 36;f36
d. 14;f86
e. 36;f14
ANS: E PTS: 1 DIF: Difficult
OBJ: Bloom'sfTaxonomy:fApplication TOP: 14.2fDNAfSTRUCTURE

16.
ThefDNAfoffanforganismfisfstudiedfandffoundftofcontainf30%fadenine.fBasedfonfthisfyoufwouldfpredi
ctfthatfthefDNAfoffthisforganismfalsofcontainsf30%f____.
a. thymine
b. cytosine
c. eachfoffcytosinefandfguanine
d. eachfoffthyminefandfguanine
e. guanine
ANS: A PTS: 1 DIF: Moderate
OBJ: Bloom'sfTaxonomy:fApplication TOP: 14.2fDNAfSTRUCTURE

17. InfDNAfthefpurinesfare
a. thyminefandfcytosine.
b. adeninefandfcytosine.
c. adeninefandfguanine.
d. thyminefandfadenine.