Which factor is important for termination of transcription?

Question

Which factor is important for termination of transcription?

1. A. α (alpha)
2. B. σ (sigma)
3. C. ρ (rho) (Correct answer)
4. D. γ (gamma)

Correct Answer

Option C — ρ (rho)

Detailed Solution & Explanation

The correct answer is $\rho$ (rho).

Key Points

• In prokaryotes, the RNA polymerase catalyses elongation and associates transiently with an initiation factor ($\sigma$, sigma) to begin and a termination factor ($\rho$, rho) to end transcription.
• Hence the rho ($\rho$) factor is required for termination of transcription.