Which of the following best describes the biological role of the lac operon?

By: Answerout


Here is the answer for the question - Which of the following best describes the biological role of the lac operon?. You'll find the correct answer below

Which of the following best describes the biological role of the lac operon? A. It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment. B. It ensures that a cell produces enzymes involved in lactose metabolism in a constitutive manner. C. It prevents other sugars from being metabolized until all available lactose has been used. D. It ensures that bacterial cells produce lactose only when no other food sources are available.

The Correct Answer is

AThe cell expends energy to produce the proteins necessary for lactose metabolism only when lactose is present.

Reason Explained

AThe cell expends energy to produce the proteins necessary for lactose metabolism only when lactose is present. is correct for Which of the following best describes the biological role of the lac operon?

comments
leave comment