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Process of DNA Replication

DNA replicati...

Question

DNA replication in bacteria occurs :

A

During S phase

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B

Within nucleolus

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C

Prior to fission

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D

Just before transcription

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Solution

The correct option is C Prior to fission
In prokaryotes like bacteria, DNA replication occurs prior to fission. But in eukaryotes, DNA replication takes place during S phase.

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Q. DNA replication occurs in which phase of cell cycle?

Q. Define DNA Replication. In which phase of cell cycle does replication occur in Eukaryotes ? Describe briefly the mechanism of DNA replication.

Q. The sequence of events mentioned below are symbolised by alphabets. Choose the correct answer where the alphabets are matched with the processes.
A B C D
RNA

\to

\to

\to

\to

Q. How many of the following statements are correct ?

A. DNA dependent DNA polymerase requires DNA primer for initiating replication but DNA dependent RNA polymerase does not require any primer for transcription.

B. DNA dependent DNA polymerase requires RNA primer for initiating replication but DNA dependent RNA polymerase does not require any primer for transcription.

C. During replication, unwinding of DNA double helix forms a fork-like structure called replication fork.

D. During transcription, unwinding of the DNA double helix by DNA dependent RNA polymerase forms a transcription bubble.

E. During transcription, unwinding of DNA double helix by DNA dependent RNA polymerase forms a transcription fork.

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