In the context of the trp operon's attenuation mechanism, what is the role of the leader peptide?

Correct answer: Its synthesis acts as a regulatory device where the speed of its translation determines which RNA secondary structure forms.

Explanation

Transcription attenuation in the trp operon is a sophisticated mechanism that couples transcription and translation. The key element is the translation of a short leader peptide containing Trp codons, which allows the cell to sense tryptophan levels and fine-tune transcription of the operon.

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