Question

A mutation prevents the lac repressor from recognizing allolactose. In the absence of allolactose, the mutant repressor has the same affinity for the lac operator sites as a normal repressor. How would you expect this mutant repressor to affect the regulation of the lac operon? Assume that no glucose is present.

Answer 1

The operon would be turned off

Step-by-step explanation:

The lac repressor is a protein that binds to DNA and thus inhibits gene expression required for lactose metabolism.