Question

Which factor is important for termination of transcription?

• A. $\sigma$ (sigma)
• B. $\rho$ (rho)
• C. $\gamma$ (gamma)
• D. $\alpha$ (alpha)

Hint:

Rho ($\rho$) = Termination. \quad Sigma ($\sigma$) = Initiation.

Answer 1

The Correct Option is B

The rho ($\rho$) factor, a protein in prokaryotes, terminates transcription. It binds to specific RNA sequences, functions as a helicase to unwind the DNA-RNA hybrid, causing RNA polymerase release and transcription cessation. Sigma factor is associated with initiation, not termination.