Molecular-Basis-Of-Inheritance Question 224

Question: During elongation of polypeptide chain, sigma factor is:

Options:

A) Functionless.

B) Retained for specific function.

C) Released for re-use.

D) Required during closing of chain.

Show Answer

Answer:

Correct Answer: A

Solution:

[a] The function of sigma factor is to confer the specificity of RNA synthesis at the promoter site.

But during elongation of polypeptide chain, sigma factor is functionless.