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Q.

What are the components required for the initiation of transcription in bacteria?

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a

RNA polymerase only

b

Promoter, RNA polymerase and σ factor,

c

ρ factor only

d

σ factor only

answer is B.

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Detailed Solution

Components required for initiation of  transcription in bacteria are RNA polymerase is only capable of catalysing the process of elongation. It associates transiently with initiation-factor (σ) and termination-factor (ρ) to initiate and terminate the transcription, respectively. A promoter region in DNA and the substrates ribonucleoside triphosphates are required.

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