Biochemistry - Transcription and Regulation - Discussion

Discussion Forum : Transcription and Regulation - Section 1 (Q.No. 2)
RNA polymerase in prokaryotes has a removable
alpha subunit
beta subunit
both (a) and (b)
sigma subunit
Answer: Option
No answer description is available. Let's discuss.
2 comments Page 1 of 1.

Jay said:   5 years ago
Sigma subunit is a factor that attaches to rna-polymerase. Rna-polymerase cannot recognise promoter on DNA strand so sigma factor binds to rna-polymerase in order to attach properly to promoter region and cover all consensus sequence.

Andrew said:   7 years ago
What is Sigma subunit?

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