In the lac operon in E.coli,a nonsense mutation in the ________ gene will result in a loss of β-galactosidase activity in the cell.

Question

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The gene that encodes for β-galactosidase activity is lacZ. A nonsense mutation in lacZ would result in a premature termination of the translation process, leading to a non-functional protein and a loss of β-galactosidase activity. Nonsense mutations in lacI, which encodes for the repressor protein, or lacY, which encodes for the permease protein, would not directly affect β-galactosidase activity.

In the Lac Operon in E