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DNA Replication

DNA Replication
DNA gyrase is inhibited by

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

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

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

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DNA Replication
Both strands of DNA serve as templates concurrently in

replication
none of these
excision repair
mismatch repair

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

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

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DNA Replication
During DNA replication in prokaryotes, synthesis begins on the circular chromosome

always at the same place
at the promoter
at any stretch of DNA that is high in AT pairs
randomly on the chromosome

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DNA Replication
During which of the following process a new copy of a DNA molecule is precisely synthesized?

Translation
Trasformation
Replication
Transcription

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