Question

A mutant strain of e. Coli produces β‑galactosidase in the presence and in the absence of lactose. Where in the operon might the mutation in this strain occur, and why?.

Answer 1

A + E

Step-by-step explanation:

The operator region where the mutation occurs and the operator does not binds to the repressor normally. The mutation can also occur in the Lacl gene which leads to an inactive lac repressor.