Ch. 24 Lehninger Biochem test bank
h h h h h
1.hThehmosthprecisehmodernhdefini onhofhahgenehishahsegmenthofhgene chmaterialhthat:
A)hcodeshforhonehpolypep de.
B)hcodeshforhonehpolypep dehorhRNAhproduct.
C)hdetermineshonehphenotype.
D)hdetermineshonehtrait.
E)hthathcodeshforhonehprotein.h-hB.hcodeshforhonehpolypep dehorhRNAhproduct
2.hThehDNAhinhahbacterialh(prokaryo c)hchromosomehishbesthdescribedhas:h
A)hahsinglehcircularhdouble-helicalhmolecule.h
B)hahsinglehlinearhdouble-helicalhmolecule.h
C)hahsinglehlinearhsingle-strandedhmolecule.h
D)hmul plehlinearhdouble-helicalhmolecules.h
E)hmul plehlinearhsingle-strandedhmoleculesh-hA.hahsinglehcircularhdouble-helicalhmolecule
3.hBacterialhplasmids:h
A)harehalwayshcovalentlyhjoinedhtohthehbacterialhchromosome.h
B)harehcomposedhofhRNA.h
C)harehneverhcircular.h
D)hcannothreplicatehwhenhcellshdivide.h
E)ho enhencodehproteinshnothnormallyhessen alhtohthehbacterium'shsurvival.h-
hE.ho enhencodehproteinshnothnormallyhessen alhtohthehbacterium'shsurvival
4.hWhichhofhthesehstatementshabouthnucleichacidshishfalse?h
, A)hMitochondriahandhchloroplastshcontainhDNA.h
B)hPlasmidsharehgeneshthathencodehplasmahproteinshinhmammals.h
C)hThehchromosomehofhE.hcolihishahclosed-circular,hdouble-helicalhDNA.h
D)hThehDNAhofhviruseshishusuallyhmuchhlongerhthanhthehviralhpar clehitself.h
E)hThehgenomehofhmanyhplanthviruseshishRNA.h-
hB.hplasmidsharehgeneshthathencodehplasmahproteinshinhmammals
5.hFunc onalhDNAhishnothfoundhin:
A)hbacterialhnucleoids.h
B)hchloroplasts.h
C)hlysosomes.h
D)hmitochondria.h
E)hnuclei.h-hC.hlysosomes
6.hThehDNAhinhaheukaryo chchromosomehishbesthdescribedhas:h
A)hahsinglehcircularhdouble-helicalhmolecule.h
B)hahsinglehlinearhdouble-helicalhmolecule.h
C)hahsinglehlinearhsingle-strandedhmolecule.h
D)hmul plehlinearhdouble-helicalhmolecules.h
E)hmul plehlinearhsingle-strandedhmoleculesh-hB.hahsinglehlinearhdouble-helicalhmolecule
7.hIntrons:
A)harehfrequentlyhpresenthinhprokaryo chgeneshbutharehrarehinheukaryo chgenes.h
B)harehsplicedhouthbeforehtranscrip on.
C)harehtranslatedhbuthnothtranscribed.h
D)hcanhoccurhmanyh meshwithinhahsinglehgene.
h h h h h
1.hThehmosthprecisehmodernhdefini onhofhahgenehishahsegmenthofhgene chmaterialhthat:
A)hcodeshforhonehpolypep de.
B)hcodeshforhonehpolypep dehorhRNAhproduct.
C)hdetermineshonehphenotype.
D)hdetermineshonehtrait.
E)hthathcodeshforhonehprotein.h-hB.hcodeshforhonehpolypep dehorhRNAhproduct
2.hThehDNAhinhahbacterialh(prokaryo c)hchromosomehishbesthdescribedhas:h
A)hahsinglehcircularhdouble-helicalhmolecule.h
B)hahsinglehlinearhdouble-helicalhmolecule.h
C)hahsinglehlinearhsingle-strandedhmolecule.h
D)hmul plehlinearhdouble-helicalhmolecules.h
E)hmul plehlinearhsingle-strandedhmoleculesh-hA.hahsinglehcircularhdouble-helicalhmolecule
3.hBacterialhplasmids:h
A)harehalwayshcovalentlyhjoinedhtohthehbacterialhchromosome.h
B)harehcomposedhofhRNA.h
C)harehneverhcircular.h
D)hcannothreplicatehwhenhcellshdivide.h
E)ho enhencodehproteinshnothnormallyhessen alhtohthehbacterium'shsurvival.h-
hE.ho enhencodehproteinshnothnormallyhessen alhtohthehbacterium'shsurvival
4.hWhichhofhthesehstatementshabouthnucleichacidshishfalse?h
, A)hMitochondriahandhchloroplastshcontainhDNA.h
B)hPlasmidsharehgeneshthathencodehplasmahproteinshinhmammals.h
C)hThehchromosomehofhE.hcolihishahclosed-circular,hdouble-helicalhDNA.h
D)hThehDNAhofhviruseshishusuallyhmuchhlongerhthanhthehviralhpar clehitself.h
E)hThehgenomehofhmanyhplanthviruseshishRNA.h-
hB.hplasmidsharehgeneshthathencodehplasmahproteinshinhmammals
5.hFunc onalhDNAhishnothfoundhin:
A)hbacterialhnucleoids.h
B)hchloroplasts.h
C)hlysosomes.h
D)hmitochondria.h
E)hnuclei.h-hC.hlysosomes
6.hThehDNAhinhaheukaryo chchromosomehishbesthdescribedhas:h
A)hahsinglehcircularhdouble-helicalhmolecule.h
B)hahsinglehlinearhdouble-helicalhmolecule.h
C)hahsinglehlinearhsingle-strandedhmolecule.h
D)hmul plehlinearhdouble-helicalhmolecules.h
E)hmul plehlinearhsingle-strandedhmoleculesh-hB.hahsinglehlinearhdouble-helicalhmolecule
7.hIntrons:
A)harehfrequentlyhpresenthinhprokaryo chgeneshbutharehrarehinheukaryo chgenes.h
B)harehsplicedhouthbeforehtranscrip on.
C)harehtranslatedhbuthnothtranscribed.h
D)hcanhoccurhmanyh meshwithinhahsinglehgene.
