Suppose a bacterial had a mutated repressor protein that could not bind to the lac operator. how ,might this affect regulation of the operon

Transcription of the operon by RNA polymerase would not stop. This would, therefore, keep the genes in the operon activated without repression. β-galactosidase, lactose permease, and lactose transacetylase enzymes would still be produced by the bacteria even in a non-lactose medium.

what's the question?

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.