If a Mutation in the Gene That Encodes CRP Makes

question 219

Multiple Choice

If a mutation in the gene that encodes CRP makes it unable to bind to cAMP, which outcome is most likely?

• A) The lac operon genes will be expressed even in the absence of lactose.
• B) The lac operon genes will be expressed at a high level even when glucose is at a high concentration.
• C) The lac operon genes will be expressed at a low level even when glucose is at a low concentration.
• D) The trp operon genes will always be expressed.
• E) The trp operon genes will never be expressed.

---

Definitions:

Mental Representation

An internal depiction of an object; thinking of an object using mental pictures.

Equilibrium

A state of balance or stability within a system, achieved when competing forces or influences are equal.

Disequilibrium

A state of imbalance or instability due to a mismatch between the demand and supply in a market or in physiological contexts, the body's inability to maintain homeostasis.

Reflexes

Involuntary and automatic responses of the body to a stimulus.