Transcription
Which factor is required for the initiation of transcription in Prokaryotes?
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About This Question
- Subject
- biology
- Chapter
- molecular basis of inheritance
- Topic
- transcription
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Sigma factor
- Enzyme: Prokaryotic RNA polymerase (holoenzyme) is responsible for transcription.
- Initiation: To specifically recognize and bind to the promoter region, the core enzyme must associate with the sigma (σ) factor.
- Elongation: After initiation, the sigma factor dissociates and the core enzyme continues elongation.
- Termination: The rho (ho) factor is required for termination.
- Conclusion: Sigma factor is required for initiation.
This easy difficulty biology question is from the chapter molecular basis of inheritance, covering the topic of transcription. It appeared in the 2025 exam.
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