A mutation in the lacI gene prevents the gene product from binding allolactose. What will the expression level of the operon be in the absence of lactose?

Question

Quizplus · Accepted Answer

In the absence of lactose, the lacI gene product (repressor) would normally bind to the operator to prevent transcription. If it cannot bind allolactose, it remains bound to the operator, blocking transcription, resulting in no transcription.

A Mutation in the LacI Gene Prevents the Gene Product