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h Edition;9780323613170, By Connie R. Mahon, Chapters
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1 - 41 Complete Guide.
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Whichcofctheseciscconsideredctocbecthecsmallestcunitcofclife?
a)cthecnucleus
b)cthecmitochondrion
c)cacplasmid
d)ctheccell
e)cacprionc-cANSWERcd)cThecsmallestcunitcofclifecisc*theccell*.
ThecstudycofcmicrobiologycincludescallcofcthecfollowingcEXCEPTc_____c.
a)cplants
b)cviruses
c)cbacteria
d)cfungi
e)calgaec-
cANSWERca)cThecstudycofcmicrobiologycincludescallcofcthecfollowingcEXCEPT c*plants*.
WhatcpercentcofcthecdrycweightcofctheccellcisccomposedcofcDNA?
a)c2c-c5
b)c12c-15
c)c25c-c30
d)c35c-40
e)c50c-c55c-cANSWERca)c*2-5*c%cofcthecdrycweightcofctheccellcisccomposedcofcDNA
WhatcarecthecthreecDomainscofclife?
a)cMonera,cAnimals,candcPlants
b)cBacteria,cArchaea,candcEukarya
c)cProkaryote,cEukaryote,candcFungi
d)cAnimals,cPlants,candcBacteria
e)cProkaryote,cEukaryote,cArchaeac-
cANSWERcb)c*Bacteria,cAchaea,candcEukarya*carecthecthreecDomainscof clife.
Whichcofctheccharacteristicscofclifeciscnotcdisplayedcbycanycindividualcorganism?
a)cmetabolism
b)cgrowth
c)creproduction
d)cevolution
e)cresponse
,f)chomeostasisc-
cANSWERcd)c*Evolution*ciscNOTcaccharacteristiccofclifecdisplayedcbycanycindividualcorga
nism.
Virusescarecconsideredc"nonliving"cforcallcofcthecfollowingcreasonscEXCEPTcthatcthey:
a)cneedcachostccellcforcreplication.
b)carecmetabolicallycinert.
c)cpossesscDNActhatccancevolve.
d)cdocnotcmaintaincinternalchomeostasis.
e)carecnotcresponsivectocenvironmentalcchanges.c-
cANSWERcc)cVirusescarecconsideredc"nonliving"cforcallcofcthecfollowingcreasonscEXCEP
Tcthatctheyc*possesscDNActhatccancevolve*.
WhichciscacmacromolecularcdifferencecbetweencthecDomainscBacteriacandcArchaea?
a)cArchaeaccontaincacnucleuscandcBacteriacdocnot.
b)cBacteriaccontaincDNAcandcArchaeacdocnot.
c)cBacteriaccontaincacplasmacmembranecandcArchaeacdocnot.
d)cBacteriaccellcwallccontainscpeptidoglycancandcthecArchaeaccellcwallcdoescnot.
e)cArchaeaccontaincmultiplectypescofcRNAcpolymerasecandcBacteriachasconlyconectype.c
-
cANSWERcd)cAcmacrobolecularcdifferencecbetweencthecDomainscBacteriacandcArchae
aciscthatc*BacteriaccellcwallccontainscpeptidoglycancandcthecArchaeaccellcwallcdoescnot*.
ThecsizecandcshapescofcArchaeanccellscsuggestcrelatednesscto:
a)cBacteria
b)cProkaryotes
c)cEukaryotes
d)cAllcotherclifecforms
e)cNocotherclifecforms;ctheircsizescandcshapescarecuniquec-
cANSWERca)cthecsizecandcshapescofcArchaeanccellscsuggestcrelatednessctoc*Bacteria*
PhosholipidcstructurecincArchaeanccellscsuggestscrelatednesscto:
a)cBacteria
b)cProkaryotes
c)cEukaryotes
d)cAllcotherclifecforms
e)cNocotherclifecforms;ctheircstructureciscuniquec-
cANSWERce)cPhospholipidcstructurecincArchaeanccellscsuggestscrelatednessctoc*nocoth
erclifecforms;ctheircstructureciscunique*
Whichcmolecularctoolcmostcassistedcincprovidingcacmorecreliablecwayctocverifycthecassert
ionscmadecbycWoesecetcalcinctheirc1990cpaperconcphylogeny?
a)cPolymerasecchaincreaction
b)cRNActocDNAcconversioncusingcreversectranscriptase
c)cRNAcsequencing
,d)cDNAcsequencing
e)cProteincsequencingc-
cANSWERca)c*Polymerasecchaincreaction*cwascthecmolecularctoolcusedctocprovidecacmo
recreliablecwayctocverifycthecassertionscmadecbycWoesecetcalcinctheirc1990cpaperconcphyl
ogeny
IfcE.ccolicDNAcpolymerase,cnotcTaqcpolymerasecwerecusedcincpolymerasecchaincreactio
ncassaysctocamplifycSSUrRNAcgenecsequences,cwecwouldcexpectctocsee:
a)cincreasedcshortcfragmentcDNAcsequences
b)cdecreasedcshortcfragmentcDNAcsequences
c)cthecsamecnumbercofcshortcfragmentcDNAcsequences
d)cincreasdclongcfragmentcDNAcsequences
e)cdecreasedclongcfragmentcDNAcsequencesc-
cANSWERcb)cifcE.ccolicDNAcpolymerasecwerecusedcincpolymerasecchainctractioncassays
ctocamplifycSSUrRNAcgenecsequences,cwecwouldcexpectctocseec*decreasedcshortcfrag
mentcDNAcsequences*.
FigurecB1.1c(othercsidecofccard)crepresentscancartist'scattemptctocillustratecthecprocessco
fcPCR.cWhatciscthecmostcsignificantcerrorcyoucnoticecincthiscfigure?
a)cDNAcstrandscarecnotcfullycdenatured
b)cPrimerscarecnotcannealed
c)cPCRcproductsccannotcseparatecfromctemplatecDNA
d)cTaqcpolymeraseciscnotcshowncincthecillustration
e)cdNTPscarecnotcshowncincthecillustrationc-
cANSWERca)c*DNAcstrandscarecnotcfullycdenatured*
Selectcthecanswercchoicecwithctheccorrectcordercincwhichcthesecstructurescevolvedcincpla
ntccells:
a)cmitochondria,ccellcwalls,cchloroplasts
b)cmitochondria,cchloroplasts,ccellcwalls
c)cchloroplasts,cmitochondria,ccellcwalls
d)cchloroplasts,ccellcwalls,cmitochondria
e)ccellcwalls,cmitochondria,cchloroplastsc-
cANSWERcb)cTheccorrectcordercincwhichcstructurescevolvedcincplantccellscis:c*mitrochon
driac->cchloroplatsc->ccellcwalls*
ApproximatelycwhencdidcprimitiveccellscfirstcappearconcEarth?
a)c1cbillioncyearscago
b)c2cbillioncyearscago
c)c2.5cbillioncyearscago
d)c3cbillioncyearscago
e)c3.8cbillioncyearscagoc-
cANSWERce)cprimitiveccellscfirstcappearedconcEarthc*3.8cbillioncyearscago*
Whichcofcthesecarecfossilizedcmicrobialcmatsccontainingcphotosyntheticcbacteria?
, a)cStromatolites
b)cBiofilms
c)cResin
d)cCyanobacteria
e)cStalagmitesc-
cANSWERca)c*stromatolites*carecfossilizedcmicrobialcmatsccontainingcphotosyntheticcb
acteria
WhichcstatementcbelowciscFALSEcconcerningcthecatmospherecofcearlycearth?
a)cThecatmospherecwascacreducingcatmosphere.c
b)cOxygencwascpresentcincverycminutecamounts.
c)cCarboncdioxidecwascpresentcincverycminutecamounts.
d)cHydrogencgascwascpresent.c-
cANSWERcc)cThecatmospherecofcearlycearthccontainedc*carboncdioxidecpresentcinchighc
concentration,cnotcverycminutecamounts*
ThecdiscoverycofcribozymescprovidescevidencecthatclifeconcthecearlycEarthcmaychavecbe
encbasedcon:
a)cDNA.
b)cproteins.
c)cRNA.
d)clipids.
e)cpolysaccharides.c-
cANSWERcc)cthecdiscoverycofcribozymescprovidescevidencecthatclifeconcthecearlycEarchc
maychavecbeencbasedconc*RNA*
WhatciscthecEndosymbioticcTheoryciscusedctocexplain?
a)cthecrapidcevolutioncofcviruses
b)cantiphagocyticcabilitiescofcparasiticcprotozoa
c)cemergencecofccellcwalls
d)cpresencecofcmitochondriacinceukaryotes
e)cdevelopmentcofcthecnucleuscinceukaryotesc-
cANSWERcd)cthecEndosymbioticcTheoryciscusedctocexplainc*presencecof cmitochondriaci
nceukaryotes*
Youcarecacscientificcillustratorcworkingconcthiscfigurec(backcofccard)cYourcprimarycintentio
ncwhencrevisingcthiscfigurecisctocemphasizecthecconceptcofcsemi-
conservativecreplication.cWhatccolorcchangescwouldcyoucmakectocthecfigurectocenhancec
comprehension?
a)cmakecallcDNAcstrandscbluecincthecfigure
b)cmakecthecdsDNAcacblue-
greenchybridcandceachcnewlycsynthesizedcstrandcofctheccolorcthatcmakescthecnewcdsDN
Acblue-greenchybridcincappearancectoo
c)cchangecallcDNAcstrandsctocbecdifferentccolors
d)cdocnotcmakecanycchanges,csemi-conservativecreplicationciscclearlycconceptualized