If you were given a bacterial strain with a mutation in the promoter region of the trp operon the most likely effect would be
A)interference with RNA polymerase binding.
B)to block the repressor from binding.
C)derepression of the trp operon.
D)enabling the trp operon to be expressed in the absence of tryptophan.

Question

Quizplus · Accepted Answer

A mutation in the promoter region of the trp operon would most likely interfere with RNA polymerase binding, affecting transcription initiation.

If You Were Given a Bacterial Strain with a Mutation