29. Which of the following is the correct order for the initiation phase of tran

Question

29. Which of the following is the correct order for the initiation phase of transcription?

Select one:

a. DNA unwinds in the region of the gene, Transcription Factors bind to the promoter sequence, then RNA polymerase binds to the promoter sequence

b. RNA polymerase binds to the promoter sequence, Transcription Factors bind to the promoter sequence, then DNA unwinds in the region of the gene

c. DNA unwinds in the region of the gene, RNA polymerase binds to the promoter sequence, then Transcription Factors bind to the promoter sequence

d. Transcription Factors bind to the promoter sequence, RNA polymerase binds to the promoter sequence, then DNA unwinds in the region of the gene

Explanation / Answer

Answer is D

Explanation - In transcription there are 3 steps

1)Initiation

2)Elongation

3)Termination

INITIATIONI- It is the first step in transcription it consists of movement of transcription factor and RNA polymerase on the DNA as the promoter comes it is recognized by transcription factor and the transcription starts.

New strands are synthesized by RNA polymerase.

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