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Question

Biology Question on Biochemistry

Given below are two statements regarding RNA polymerase in prokaryotes.
Statement I : In prokaryotes, RNA polymerase is capable of catalysing the process of elongation during transcription.
Statement II : RNA polymerase associate transiently with ‘Rho’ factor to initiate transcription.
In the light of the above statements, choose the correct answer from the options given below :

A

Statement I is true but Statement II is false

B

Statement I is false but Statement II is true

C

Both Statement I and Statement II are true

D

Both Statement I and Statement II are false

Answer

Statement I is true but Statement II is false

Explanation

Solution

Statement I: Prokaryotic RNA polymerase is responsible for the elongation phase of transcription. Correct

Statement II: The Rho factor is involved in termination, not initiation of transcription. RNA polymerase interacts with sigma factor (σ) for initiation and with Rho factor (ρ) for termination. Incorrect