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प्रश्न
How is the rate of initiation of RNA polymerase at a given promoter in a transcriptional unit of prokaryotes regulated?
लघु उत्तर
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उत्तर
- In a transcription unit, the activity of RNA polymerase at a given promoter is regulated by accessory proteins that have an ability to recognise start sites.
- These regulatory proteins can act both positively (activators) and negatively (repressors) with the operator, which is adjacent to the promoter in an operon unit.
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