Test Bank For the Genetics and Genomics in Nursing and Health Care 22nd Edition by Theresa A Beery,

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20

,
, Chapter1:DNAStructureandFunction

MultipleChoice
Identifythechoicethatbest completesthestatement oranswers thequestion.

A. n 1. Inwhichbodyorcellareaaremostgenesinhumanslocated?
A. Nucleus
B. Mitochondrion
C. Cytoplasm
D. Plasmamembrane

A. n 2. Whichconditionorstatement exemplifiestheconceptofgenomicsratherthangenetics?
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A. Thegeneforinsulinislocatedonchromosome11inallpeople.
B. Expressionofanysinglegeneisdependentoninheritingtwoalleles.
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C. Sex-linkedrecessivedisordersaffect malesmoreoftenthanfemales.
D. Onealleleforeachgeneisinheritedfromthemother,andoneisinheritedfrom
thefather.
A. 3. WhatisthepurposeofphosphorousinaDNAstrand?
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A. Linkingthenucleotidesintoastrand
B. Holdingcomplementarystrandstogether
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C. Ensuringthatapurineisalwayspairedwithapyrimidine
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D. Preventing theseparationofdouble-strandedDNAintosingle-strandedDNA

A. 4.Whatisthetermusedtodefinealternativeformsofagenethatmayresultindifferent
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expression ofthetraitcodedforbythatgene? n




A. Alleles
B. Bases
C. Centromeres
D. Diploids

D. 5.Whatpercentageofbasesinastretchofdouble-strandedDNAthat contains30%guanine
(G) baseswouldbeadenine(A)?
A. 70%
B. 60%
C. 30%
D. 20%

C. 6. What isthe termused todescribe theorganized pictureofthe pairedchromosomeswithina
cell used to determinewhether chromosome numbers, structures, and banding patterns
arenormal?
A. Pedigree
B. Phenotype
C. Karyotype
D. Autotype

D. n 7. WhatwouldbethesequenceofDNAthatiscomplementarytoaDNAsectionwiththebase
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sequenceofGGTCAATCCTTAG?
A. GATTCCTAACTGG
B. TTGACCGAAGGCT
C. AACTGGCTTCCGA
D. CCAGTTAGGAATC

, B. 8. Whichofthesecomplementarybasepairsformthestrongestor“tightest”association?
A. Adenineandthymine
B. Cytosineandguanine
C. Guanineandthymine
D. Cytosineandadenine

A 9. WhatactivityoccursduringMphaseofthecellcycle?
A. Thecellundergoescytokinesis.
B. Activitystops,andthecell“sleeps.”
C. AllDNAiscompletelyreplicated.
D. Thecellgreatlyincreasesproteinsynthesis.

B. 10. Whichchromosomenumberrepresentstheeuploidstatefornormalhumansomaticcells?
A. 44
B. 46
C. 47
D. 48
A. 11. Howdoestheproteomedifferfromthegenome?
A. Theproteomechangesinresponsetointracellularandextracellularsignals.
B. Thegenomechangesinresponsetointracellularandextracellularsignals.
C. Theproteomeisstableinsomaticcellsandunstableingermcells,whereas
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the genomeisstableinbothsomaticcellsandgermcells.
D. Thegenomeisstableinsomaticcellsandunstableingermcells,whereas
the proteomeisstableinbothsomaticcellsandgermcells.
C. 12.
n Whatisthemostoutstandingfeatureofamaturehaploidcell?
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A. Itisusuallyhomozygous.
B. Thesexchromosomesaremissing
C. Onlyonechromosomeofeachpairispresent.
D. DNAsynthesisoccursaftermitosisinsteadofbefore.
D. 13. At whatphaseofthecellcyclearechromosomesvisibleasseparatestructures?
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A. G1
B. G2
C. S
D. M
B. 14. WhichstatementaboutthecellcyclephaseofG0 istrue?
A. Hyperplasticgrowthinplaceofhypertrophicgrowth
B. Performanceofspecificdifferentiated functions
C. Initiationandcompletionofnucleokinesis
D. ReplicationofDNA

B. 15. What istheresult ofnormalDNAreplication?
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A. Formationoftwonewdaughtercells
B. FormationoftwoidenticalsetsofDNA
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C. Disappearanceoftheoriginalparent cell
D. Activationand attachment ofspindlefibers
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