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The lac operon controls the production of beta-galactosidase and lactose permease proteins. A mutation in the lac repressor protein that prevented it from binding lactose would likely cause the cell to:A. always produce the beta-galactosidase and lactose permease proteins irrespective of whether lactose is present or absent.B. never produce the beta-galactosidase and lactose permease proteins irrespective of whether lactose is present or absent.C. produce beta-galactosidase and lactose permease proteins only when lactose is present.D. produce beta-galactosidase and lactose permease proteins only when lactose is absent.E. produce beta-galactosidase but not lactose permease..

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