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DNA Replication

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

all of these
DnaA
DnaG
DnaC

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

Topoisomerases
Helicase
DNA gyrase
DNA ligase

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

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

Transcription
Trasformation
Replication
Translation

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

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

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

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