what is the advantage to having one promoter and one operator associated with three structural genes that produce lactose metabolizing enzymes?

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria