b
20
,
, Chapter1:DNAStructureandFunction
MultipleChoice
Identifythechoicethatbest completesthestatement oranswers thequestion.
x x x
A. n 1. Inwhichbodyorcellareaaremostgenesinhumanslocated?
x
A. Nucleus
B. Mitochondrion
C. Cytoplasm
D. Plasmamembrane
A. n 2. Whichconditionorstatement exemplifiestheconceptofgenomicsratherthangenetics?
x b b n
A. Thegeneforinsulinislocatedonchromosome11inallpeople.
B. Expressionofanysinglegeneisdependentoninheritingtwoalleles. n
C. Sex-linkedrecessivedisordersaffect malesmoreoftenthanfemales. x
D. Onealleleforeachgeneisinheritedfromthemother,andoneisinheritedfrom
thefather.
x
A. 3. Whati sthepurposeofphosphorousinaDNAstrand?
x b x
A. Linkingthenucleotidesintoastrand
B. Holdingcomplementarystrandstogether
b
C. Ensuringthatapurineisalwayspairedwithapyrimidine b
D. Preventing theseparationofdouble-strandedDNAintosingle-strandedDNA
x
A. 4.Whatisthetermusedtodefinealternativeformsofagenethatmayresultindifferent n b x
x expression ofthetraitcodedforbythatgene?
x n
A. Alleles
B. Bases
C. Centromeres
D. Diploids
D. 5.Whatpercentageofbasesinastretchofdouble-strandedDNAthat contains30%guanine x
(G) baseswouldbeadenine(A)?
A. 70%
B. 60%
C. 30%
D. 20%
C. 6. What isthe termused todescribe theorganized pictureofthe pairedchromosomeswithina
x x x x x x x
xcell used to determinewhether chromosome numbers, structures, and banding patterns
x x x x x x x x x
xarenormal?
A. Pedigree
B. Phenotype
C. Karyotype
D. Autotype
D. x
n 7. WhatwouldbethesequenceofDNAthati b xxxx
scomplementarytoaDNAsectionwiththebase sequenceofGGTCAATCCTTAG?
x x
A. GATTCCTAACTGG
B. TTGACCGAAGGCT
C. AACTGGCTTCCGA
D. CCAGTTAGGAATC
, B. 8. Whichofthesecomplementarybasepairsformthestrongestor“tightest”association?
A. Adenineandthymine
B. Cytosineandguanine
C. Guanineandthymine
D. Cytosineandadenine
A 9. x x WhatactivityoccursduringMphaseofthecellcycle?
A. Thecellundergoescytokinesis.
B. Activitystops,andthecell“sleeps.”
C. AllDNAiscompletelyreplicated.
D. Thecellgreatlyincreasesproteinsynthesis.
B. 10. x x Whichchromosomenumberrepresentstheeuploidstatefornormalhumansomaticcells?
A. 44
B. 46
C. 47
D. 48
A. 11. Howdoestheproteomedifferfromthegenome?
A. Theproteomechangesinresponsetointracellularandextracellularsignals.
B. Thegenomechangesinresponsetointracellularandextracellularsignals.
C. Theproteomeisstableinsomaticcellsandunstableingermcells,whereas
b b x
the genomeisstableinbothsomaticcellsandgermcells.
x x
D. Thegenomeisstableinsomaticcellsandunstableingermcells,whereas
the proteomeisstableinbothsomaticcellsandgermcells.
x x
C. 12.
n Whatisthemostoutstandingfeatureofamaturehaploidcell?
b
A. Itisusuallyhomozygous.
B. Thesexchromosomesaremissing
C. Onlyonechromosomeofeachpairispresent.
D. DNAsynthesisoccursaftermitosisinsteadofbefore.
D. 13. At whatphaseofthecellcyclearechromosomesvisibleasseparatestructures?
x b
A. G1
B. G2
C. S
D. M
B. 14. WhichstatementaboutthecellcyclephaseofG0 istrue? x
A. Hyperplasticgrowthinplaceofhypertrophicgrowth
B. Performanceofspecificdifferentiated functions x
C. Initiationandcompletionofnucleokinesis
D. ReplicationofDNA
B. 15. x What istheresult ofnormalDNAreplication?
b x
A. Formationoftwonewdaughtercells
B. FormationoftwoidenticalsetsofDNA b
C. Disappearanceoftheoriginalparent cell x
D. Activationand attachment ofspindlefibers
x n
20
,
, Chapter1:DNAStructureandFunction
MultipleChoice
Identifythechoicethatbest completesthestatement oranswers thequestion.
x x x
A. n 1. Inwhichbodyorcellareaaremostgenesinhumanslocated?
x
A. Nucleus
B. Mitochondrion
C. Cytoplasm
D. Plasmamembrane
A. n 2. Whichconditionorstatement exemplifiestheconceptofgenomicsratherthangenetics?
x b b n
A. Thegeneforinsulinislocatedonchromosome11inallpeople.
B. Expressionofanysinglegeneisdependentoninheritingtwoalleles. n
C. Sex-linkedrecessivedisordersaffect malesmoreoftenthanfemales. x
D. Onealleleforeachgeneisinheritedfromthemother,andoneisinheritedfrom
thefather.
x
A. 3. Whati sthepurposeofphosphorousinaDNAstrand?
x b x
A. Linkingthenucleotidesintoastrand
B. Holdingcomplementarystrandstogether
b
C. Ensuringthatapurineisalwayspairedwithapyrimidine b
D. Preventing theseparationofdouble-strandedDNAintosingle-strandedDNA
x
A. 4.Whatisthetermusedtodefinealternativeformsofagenethatmayresultindifferent n b x
x expression ofthetraitcodedforbythatgene?
x n
A. Alleles
B. Bases
C. Centromeres
D. Diploids
D. 5.Whatpercentageofbasesinastretchofdouble-strandedDNAthat contains30%guanine x
(G) baseswouldbeadenine(A)?
A. 70%
B. 60%
C. 30%
D. 20%
C. 6. What isthe termused todescribe theorganized pictureofthe pairedchromosomeswithina
x x x x x x x
xcell used to determinewhether chromosome numbers, structures, and banding patterns
x x x x x x x x x
xarenormal?
A. Pedigree
B. Phenotype
C. Karyotype
D. Autotype
D. x
n 7. WhatwouldbethesequenceofDNAthati b xxxx
scomplementarytoaDNAsectionwiththebase sequenceofGGTCAATCCTTAG?
x x
A. GATTCCTAACTGG
B. TTGACCGAAGGCT
C. AACTGGCTTCCGA
D. CCAGTTAGGAATC
, B. 8. Whichofthesecomplementarybasepairsformthestrongestor“tightest”association?
A. Adenineandthymine
B. Cytosineandguanine
C. Guanineandthymine
D. Cytosineandadenine
A 9. x x WhatactivityoccursduringMphaseofthecellcycle?
A. Thecellundergoescytokinesis.
B. Activitystops,andthecell“sleeps.”
C. AllDNAiscompletelyreplicated.
D. Thecellgreatlyincreasesproteinsynthesis.
B. 10. x x Whichchromosomenumberrepresentstheeuploidstatefornormalhumansomaticcells?
A. 44
B. 46
C. 47
D. 48
A. 11. Howdoestheproteomedifferfromthegenome?
A. Theproteomechangesinresponsetointracellularandextracellularsignals.
B. Thegenomechangesinresponsetointracellularandextracellularsignals.
C. Theproteomeisstableinsomaticcellsandunstableingermcells,whereas
b b x
the genomeisstableinbothsomaticcellsandgermcells.
x x
D. Thegenomeisstableinsomaticcellsandunstableingermcells,whereas
the proteomeisstableinbothsomaticcellsandgermcells.
x x
C. 12.
n Whatisthemostoutstandingfeatureofamaturehaploidcell?
b
A. Itisusuallyhomozygous.
B. Thesexchromosomesaremissing
C. Onlyonechromosomeofeachpairispresent.
D. DNAsynthesisoccursaftermitosisinsteadofbefore.
D. 13. At whatphaseofthecellcyclearechromosomesvisibleasseparatestructures?
x b
A. G1
B. G2
C. S
D. M
B. 14. WhichstatementaboutthecellcyclephaseofG0 istrue? x
A. Hyperplasticgrowthinplaceofhypertrophicgrowth
B. Performanceofspecificdifferentiated functions x
C. Initiationandcompletionofnucleokinesis
D. ReplicationofDNA
B. 15. x What istheresult ofnormalDNAreplication?
b x
A. Formationoftwonewdaughtercells
B. FormationoftwoidenticalsetsofDNA b
C. Disappearanceoftheoriginalparent cell x
D. Activationand attachment ofspindlefibers
x n
