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Prokaryotic Gene Expression

15. Central Dogma & Gene Regulation / Prokaryotic Gene Expression / Problem 4

How does attenuation regulate the trp operon in prokaryotes?

A

The attenuator sequence induces premature termination of transcription when tryptophan levels are low.

B

Attenuation regulates the operon through the interaction of a small RNA with the ribosome.

C

The leader peptide is translated, and transcription is terminated prematurely when tryptophan levels are high.

D

Attenuation blocks the activity of the trp repressor, allowing transcription to continue.

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