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DNA Replication

DNA Replication
DNA gyrase is inhibited by

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

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DNA Replication
Which of the following statements on replication in E.coli is correct?

It occurs in bidirectional manner
It occurs in a unidirectional manner
Occurs only when λ phase has infected E. coli
Always uses T7 DNA polymerase when infected by T7 phage

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

DnaC
DnaA
DnaG
all of these

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DNA Replication
Which of the following lacks 3'-5' exonuclease activity?

Short fragment of DNA polymerase I
T4 DNA ligase
All of these
Taq DNA polymerase

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DNA Replication
DNA replication rates in prokaryotes are approximately of the order of

1,000 bases per second
10 bases per second
1,00 bases per second
10,000 bases per second

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DNA Replication
The synthesis of DNA by DNA polymerase occurs in the

5' to 3' direction
5' to 5' direction
3' to 3' direction
3' to 5' direction

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