Which factor is crucial for the initiation of transcription?
Understand the Problem
The question is asking which factor is essential for starting the process of transcription in biology. It involves understanding different factors associated with transcription initiation.
Answer
Sigma (σ) factor
The initiation of transcription requires a sigma (σ) factor for promoter recognition and opening.
Answer for screen readers
The initiation of transcription requires a sigma (σ) factor for promoter recognition and opening.
More Information
In bacteria, the sigma (σ) factor is essential for the initiation of transcription. It is a protein that assists RNA polymerase in binding to the promoter regions of the DNA, enabling the proper start of transcription.
Tips
A common mistake is confusing transcription factors in general with the specific role of the sigma factor in initiating transcription in prokaryotes.
Sources
- Transcription Initiation Overview - ScienceDirect Topics - sciencedirect.com
- Transcription factors on Proteopedia - proteopedia.org
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