For a repressible operon to be transcribed, which of the following conditions must occur?
A) RNA polymerase must bind to the promoter and a corepressor must be present.
B) RNA polymerase and active repressor must occupy the promoter.
C) RNA polymerase must bind to the promoter, and the repressor must be inactive.
D) RNA polymerase must bind the inducer, and the repressor must be inactive.

Question

Quizplus · Accepted Answer

For transcription of a repressible operon to occur, RNA polymerase must be able to bind to the promoter, and the repressor protein must be inactive or not bound to the operator. This allows transcription to proceed.

For a Repressible Operon to Be Transcribed, Which of the Following