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7:03
YouTube
Quick Biochemistry Basics
Tryptophan operon
Tryptophan operon, commonly known as trp operon is regulated at two levels. One is by the trp repressor that inhibits transcription of trp genes when the concentration of tryptophan is high and other is by the leader sequence that forms a termination loop to halt RNA polymerase, causing transcription attenuation.
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