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DNA Replication

DNA Replication
The enzyme that catalyzes the synthesis of DNA is called

DNA gyrase
helicase
DNA ligase
DNA polymerase

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DNA Replication
In E.coli, which enzyme synthesizes the RNA primer for Okazaki fragments?

all of these
DnaG
DnaA
DnaC

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DNA Replication
Which of the following possesses both 5'-3' and 3'-5' exonuclease activity?

None of these
DNA polymerase III
Kornberg enzyme
Taq DNA polymerase

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DNA Replication
Which of the following repairs nicked DNA by forming a phosphodiester bond between adjacent nucleotides?

Topoisomerases
DNA gyrase
DNA ligase
Helicase

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DNA Replication
Both strands of DNA serve as templates concurrently in

none of these
excision repair
mismatch repair
replication

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DNA Replication
DNA gyrase is inhibited by

both (a) and (b)
tetracycline
cephalosporin
nalidixic acid

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