The Obvious Advantage of the Lactose Operon Is That

question 53

Multiple Choice

The obvious advantage of the lactose operon is that

• A) it allows bacteria to survive in the presence of lactose.
• B) lactose-metabolizing enzymes need not be made when lactose is not present.
• C) it enables bacteria to make lactose only in the presence of the proper enzymes.
• D) it negates the need for milk in the diet of adult humans.
• E) it enables glucose to substitute for lactose in the diet of lactose intolerant persons.

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