How many promoters are in an operon?
A) 1
B) 2
C) 3
D) It depends on how many genes are present in the operon

Question

Quizplus · Accepted Answer

An operon typically has one promoter region, which is where RNA polymerase binds to initiate transcription of the genes within the operon. While some operons may have multiple transcription start sites within the promoter region, there is generally only one primary promoter sequence that is recognized by RNA polymerase. Therefore, the most accurate answer is A) 1.

How Many Promoters Are in an Operon