A LacO^c Mutant Would

question 19

Multiple Choice

A lacO^c mutant would

• A)never express lac structural genes.
• B)constitutively express the lac structural genes.
• C)not bind to lacI.
• D)use glucose before using lactose as a carbon and energy source.
• E)not bind to lacI and never express lac structural genes.

---

Definitions:

Sexual Activity

Behavioral acts that include direct sexual contact and arousal between individuals, which may or may not involve intercourse.

Herpes

A group of viral infections causing sores and blisters on different parts of the body, most commonly on the mouth or genitals.

Open Sores

Wounds or ulcers on the skin or mucous membranes that are exposed and not covered by skin.

Infection

The invasion and multiplication of microorganisms such as bacteria, viruses, and parasites that are not normally present within the body, often causing illness.