Question

A mutant strain of E. coli produces -galactosidase in the presence and in the absence of lactose. Which of the following mutations will cause this result?

A. mutations in the lac operator
B. mutations in the lacl gene that encodes the repressor
C. mutations in the CAP binding site
D. both A and B are correct A,B, and C are correct

Answer 1

I believe the correct answer is B. mutations in the lac gene that encodes the repressor