what-happens-to-the-trp-operon-when-tryptophan-is-absent-in-the-environment

Question

What happens to the trp operon when tryptophan is absent in the environment?

Accepted Answer

The operon is fully transcribed because the repressor cannot bind to the operator.

Answer

The operon is repressed because the repressor is activated by low tryptophan levels.

Answer

Attenuation occurs, preventing full transcription of the operon.

Answer

The operon is only partially transcribed due to catabolite repression.