Question

Which mutation is expected to have a similar effect to a mutation in which the LacI repressor is no longer able to bind to the operator?

Answer 1

A mutation in which the LacI repressor is unable to bind to the operator has a similar effect as a mutation that prevents the repressor protein from binding to the operator in the lac operon.

Step-by-step explanation:

A mutation in which the LacI repressor is no longer able to bind to the operator is expected to have a similar effect to a mutation in which the operator sequence of the lac operon contained a mutation that prevented the repressor protein from binding the operator. In both cases, the repressor protein is unable to bind to the operator, resulting in the derepression of the lac operon.