MCGRAW HILL GENETICS CONNECT HOMEWORK CHPT. 13, 14, 15, 17, 25 QUESTIONS AND CORRECT ANSWERS

MCGRAW HILL GENETICS CONNECT
HOMEWORK CHPT. 13, 14, 15, 17, 25
QUESTIONS AND CORRECT ANSWERS

WhichA2statementA2bestA2describesA2theA2synthesisA2ofA2theA2laggingA2strand?
a)A2ItA2proceedsA25'-3'A2awayA2fromA2theA2replicationA2fork.
b)A2ItA2proceedsA23'-5'A2towardA2theA2replicationA2fork.
c)A2ItA2proceedsA25'-3'A2towardA2theA2replicationA2fork.
d)A2ItA2proceedsA23'-5'A2awayA2fromA2theA2replicationA2fork.A2-A2Ans--a)A2ItA2proceedsA25'-
3'A2awayA2fromA2theA2replicationA2fork.

InA2bacteria,A2(haveA2aA2singleA2originA2ofA2replication)A2AtA2aA2singleA2originA2ofA2replicati
on,A2howA2manyA2leadingA2strandA2primersA2areA2required?A2-A2Ans--2

WhatA2enzymeA2replacesA2RNAA2withA2DNAA2onA2theA2laggingA2strand?A2-A2Ans--
DNAA2PolA2I

IfA2aA2linearA2DNAA2moleculeA2containingA2aA2singleA2originA2ofA2replicationA2isA2replicated
,A2willA2theA2leadingA2andA2laggingA2strandsA2everA2meet?A2-A2Ans--
Yes,A2theyA2meetA2atA2theA2originA2ofA2replication

WhichA2ofA2theA2followingA2areA2limitationsA2ofA2DNAA2polymerase?
A)A2itA2canA2onlyA2addA2basesA2toA2theA2exposedA25'A2endA2ofA2aA2pre-existingA2strand
B)A2itA2canA2onlyA2replicateA2theA2leadingA2strand
C)A2itA2canA2onlyA2replicateA2theA2laggingA2strand
D)A2allA2ofA2theA2above
E)A2noneA2ofA2theA2aboveA2-A2Ans--noneA2ofA2theA2above

TheA2enzymeA2________A2unzipsA2andA2unwindsA2theA2DNAA2molecule.
A)A2DNAA2polymerase
B)A2helicase
C)A2primase
D)A2DNAA2ligase
E)A2unzipaseA2-A2Ans--helicase

WhichA2ofA2theA2followingA2statementsA2aboutA2DNAA2replicationA2isA2TRUE?
A)A2theA2leadingA2strandA2isA2replicatedA2continuously,A2whileA2theA2laggingA2strandA2isA2r
eplicatedA2discontinuously
B)A2theA2leadingA2strandA2isA2replicatedA2discontinuously,A2whileA2theA2laggingA2strandA2is
A2replicatedA2continuously
C)A2bothA2theA2leadingA2andA2laggingA2strandsA2areA2replicatedA2continuously
D)A2bothA2theA2leadingA2andA2laggingA2strandsA2areA2replicatedA2discontinuously