In the Absence of Tryptophan,____________

Multiple Choice

In the absence of tryptophan,____________ .

A) the repressor binds the corepressor, and operon gene transcription occurs
B) the active repressor binds trpP, so operon gene transcription is repressed
C) the inducer cannot bind trpO, so operon gene transcription occurs
D) the inactive repressor cannot bind trpO, so operon gene transcription occurs
E) the active repressor cannot bind trpO, so operon gene transcription is attenuated