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Chapter1
bb Introduction to Genetics b bb bb
1) Whatisthenameofthecompanyorinstitutionthathasaccesstothehealth,genealogical,and genetic
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information of approximately270,000 residents of Iceland?
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A) National InstitutesofHealth bb bb bb
B) deCODE
C) Gattaca
D) Biogen
E) AmericanCancerSociety b b
Answer: B
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Section: Introduction
2) Abiotechnologycompany, deCODE,isintheprocess ofcreating adatabasethat contains
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.
A) thegenesequences ofall newborns intheUnitedStates beginningin2006
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B) acompilationofalltheknown genes inhumansthroughout thefreeworld
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C) health,genealogical,and geneticinformation of approximately270,000 residents of Iceland
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D) acompletesequenceofthehumangenome
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E) alltheinformationavailableonthehumangenomeproject
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Answer: C
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Section: Introduction
3) WhydiddeCODEselect Iceland forits ambitious research project?
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A) arelativelylowdegreeof geneticdiversity
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B) frequent and extensivemutational bursts bb bb bb bb
C) high geneticdiversity bb bb
D) lackofgenealogical information
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E) virtualabsenceofmutation b b b
Answer: A
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Section: Introduction
4) Thegeneticmaterial DNAconsists ofbasicsubunits called
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A) mitochondria
B) lysosomes
C) centrioles
D) nucleotides
E) Noneoftheanswerslistediscorrect. b b b b b b
Answer: D
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Section: 1.3
1
,5) Theimmediateproduct of transcription is
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A) aphospholipid
b
B) anaminoacid bb b
C) aprotein b
D) acarbohydrate b
E) RNA
Answer: E b b
Section: 1.3
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6) In manyspecies, there are two representatives ofeach chromosome. In such species, the
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characteristic number of chromosomes is called the
bb number.Itisusuallysymbolized as bb bb bb bb bb bb b b b b bb
.
A) haploid;n b
B) haploid;2n b
C) diploid;2n b
D) diploid;n b
E) Noneoftheanswerslistediscorrect. b b b b b b
Answer: C
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Section: 1.2
7) Geneticsisthestudyof bb bb bb b .
A) heredityand variation b bb
B) mutationand recession bb bb
C) transcriptionandtranslation bb bb
D) diploidand haploid bb bb
E) replicationandrecombination bb bb
Answer: A
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Section: 1.2
8) Earlyin the twentieth century, Walter Sutton and Theodore Boveri noted that the behavior of
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chromosomesduringmeiosisisidenticaltothebehaviorofgenesduringgameteformation.They
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proposed that genes are carried on chromosomes, which led to the basis of the
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.Answer:
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Chromosome Theory of Inheritance bb bb bb
Section: 1.2
9) Whatisamutation? b b b
Answer: Amutationisaninheritedchangeinagene. b b b b b b b b
Section: 1.2
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10) What is a simple definition of an allele?bb bb bb bb bb bb bb
Answer: Analleleisavariantformofagene.
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Section: 1.2
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2
,11) Untilthemid-1940s, manyscientists considered proteins tobethelikelycandidates forthe
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genetic material. Why?
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Answer: Proteins arethemost abundant, universally distributed components in cells. Because of bb bb bb bb bb bb bb bb bb bb bb
their great structural and functional diversity, theywereconsidered likelycandidates.
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Section: 1.2
12) Nametheindividual who, whileworkingwith thegardenpeainthemid-1850s, demonstrated
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quantitativepatterns of heredityand developed a theoryinvolvingthe behavior ofhereditary factors.
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Answer: GregorMendel b
Section: 1.2
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13) Whatdoesthetermgenetics mean? bb bb b bb bb
Answer: Geneticsisasubdisciplineofbiologyconcernedwiththestudyofheredityand
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variationat themolecular, cellular, developmental,organismal, and populational levels.
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Section: 1.2
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14) Namethesubstance that serves asthehereditarymaterial in eukaryotes and prokaryotes.
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Answer: DNA or deoxyribonucleic acid
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Section: 1.2
15) Nametwo individuals who providedtheconceptual basis forourpresent understanding that genes
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are on chromosomes.
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Answer: WalterSuttonandTheodoreBoveri b b b b
Section: 1.2
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16) Whattermisusedtodescribethefactthatdifferent genesinanorganismoftenprovide
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differences in observable features?
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Answer: phenotype
Section: 1.2
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17) Afundamental propertyofDNA'snitrogenous bases thatisnecessaryforthe
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double-stranded nature of its structure is
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Answer: complementarity
Section: 1.3
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18) Recombinant DNAtechnologyis dependent onaparticularclass of enzymes, known as bb b b bb bb bb b bb bb bb bb bb
,thatcutDNAatspecificnucleotidesequences.
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Answer: restrictionenzymes
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Section: 1.4
19) Namethebotanistwho,in1900,rediscovered theworkofGregorMendel.
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Answer: CarlCorrens
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Section: 1.2
3
, 20) Genetics is commonly seen as being grouped into several general areas: transmission,
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molecular,andpopulation/evolution.Whichbiologicalprocessesarestudiedintransmission
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genetics?
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Answer: Mendelian inheritance (segregation and independent assortment), modification of bb bb bb bb bb bb bb
Mendelian patterns, and pedigree analysis
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Section: Introduction and SummaryPoints bb bb b
21) Whoowns transgenicorganisms?
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Answer: Onceproduced, apatentcanbeobtainedonalivingorganism,therebyoffering bb bb bb bb bb bb bb bb bb bb bb bb
exclusiveuse of the transgenic organism to thepatent holder.
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Section: 1.5
22) In 1996, a cloning experiment produced the sheep named Dolly. Contrary to the more
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traditionalmethodofcloningbyembryosplitting,Dollywasproducedbywhichprocedure?
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Answer: nucleartransfer
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Section: 1.4
23) Whattermisapplied toavarietyofprojects wherebygenomesequencesaredepositedin
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databases for research purposes?
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Answer: genomics
Section: 1.6
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24) Thefirstdraftofthehumangenomesequencewasreportedin2001bytwogroups,the
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publiclyfunded
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Answer: HumanGenomeProject; CeleraCorporation bb bb bb bb
Section: 1.6
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25) A number of genomes have been sequenced in recent years: Escherichia coli,
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Saccharomycescerevisiae,Caenorhabditiselegans,Drosophilamelanogaster,andMus
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musculus. What are the common names for these organisms?
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Answer: bacterium, yeast, roundworm,fruit fly,mouse bb bb bb bb bb
Section: 1.6,1.7
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26) Whatismeantbythetermgenome?
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Answer: ThegenomeisalltheDNAcarriedinanorganism. b b b b b b b b b
Section: 1.4
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27) Innonviral systems, what isthenatureofthehereditarysubstance?
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Answer: DNA(deoxyribonucleic acid)isadouble-stranded polymerorganized as adouble bb bb bb bb bb bb bb bb bb bb
helix.
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Section: 1.3
28) Whatcharacterizes thecontentandfunction ofaDNAmicroarray?
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Answer: ADNAmicroarraycancarrythousandsofgenesthatcanbeusedtotestforgene
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expression.
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Section: 1.5
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