Exam (elaborations)
CHAPTER 6 EXAM 3 STUDY QUESTIONS AND ANSWERS.
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CHAPTER 6 EXAM 3 STUDY QUESTIONS AND ANSWERS.
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CHAPTER 6 EXAM 3 STUDY QUESTIONSAND ANSWERS
The mprocess mof mDNA mreplication mrequires mthat meach mof mthe mparental mDNA mstrands
mbe mused mas ma m___________________ mto mproduce ma mduplicate mof mthe mopposing
mstrand. m- mCorrect mAnswer m- mtemplate
DNA mreplication mis mconsidered msemiconservative mbecause
m____________________________. m- mCorrect mAnswer m- meach mdaughter mDNA
mmolecule mconsists mof mone mnew mstrands mcopied mfrom mthe mparent mDNA mmolecule.
The mclassic mexperiments mconducted mby mMeselson mand mStahl mdemonstrated mthat
mDNA mreplication mis maccomplished mby memploying ma m________________ mmechanism.
m- mCorrect mAnswer m- msemiconservative
Initiator mproteins mbind mto mreplication morigins mand mdisrupt mhydrogen mbonds mbetween
mthe mtwo mDNA mstrands mbeing mcopied. mWhich mof mthe mfactors mbelow mdoes mnot
mcontribute mto mthe mrelative mease mof mstrand mseparation mby minitiator mproteins? m-
mCorrect mAnswer m- mthe mreaction mcan moccur mat mroom mtemperature
If mthe mgenome mof mthe mbacterium mE. mcoli mrequires mabout m20 mminutes mto mreplicate
mitself, mhow mcan mthe mgenome mof mthe mfruit mfly mDrosophila mbe mreplicated min monly m3
mminutes? m- mCorrect mAnswer m- mDrosophila mDNA mcontains mmore morigins mof
mreplication mthan mE. mcoli mDNA.
How mdoes mthe mtotal mnumber mof mreplication morigins min mbacterial mcells mcompare mwith
mthe mnumber mof morigins min mhuman mcells? m- mCorrect mAnswer m- m1 mversus m10,000
Which mof mthe mfollowing mstatements mcorrectly mexplains mwhat mit mmeans mfor mDNA
mreplication mto mbe mbidirectional? m- mCorrect mAnswer m- mThe mreplication mforks mformed
mat mthe morigin mmove min mopposite mdirections.
The mchromatin mstructure min meukaryotic mcells mis mmuch mmore mcomplicated mthan mthat
mobserved min mprokaryotic mcells. mThis mis mthought mto mbe mthe mreason mthat mDNA
mreplication moccurs mmuch mfaster min mprokaryotes. mHow mmuch mfaster mis mit? m- mCorrect
mAnswer m- m10×
DNA mpolymerase mcatalyzes mthe mjoining mof ma mnucleotide mto ma mgrowing mDNA mstrand.
mWhat mprevents mthis menzyme mfrom mcatalyzing mthe mreverse mreaction? m- mCorrect
mAnswer m- mhydrolysis mof mpyrophosphate m(PPi) mto minorganic mphosphate m(Pi) m+ mPi
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