A type of mutation in bacteria in the repressor results in a molecule known as a super-repressor because it represses the lac operon permanently.Which of the following processes would occur in such a mutant?
A)The repressor protein cannot bind to the operator.
B)A functional repressor protein is produced.
C)The repressor protein cannot bind the inducer.
D)The lac operon will be transcribed continuously.

Question

Quizplus · Accepted Answer

The repressor protein cannot bind the inducer, leading to the permanent repression of the lac operon because the inducer (usually allolactose in the case of the lac operon) cannot relieve the repression by binding to the repressor.

A Type of Mutation in Bacteria in the Repressor Results