Suppose That You Observe a Mutant E

question 47

Multiple Choice

Suppose that you observe a mutant E. coli in which CAP is always inactive. In the presence of lactose and low levels of glucose, what would you expect the gene expression from this mutant's lac operon to be?

• A) inactive
• B) normal
• C) greatly reduced
• D) overactive

---

Definitions:

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Respondent Behavior

Behavior that is elicited by a specific stimulus and is part of the classical conditioning process, such as salivating when smelling food.

Substituting Stimulus

A stimulus that is used to replace another, prompting a similar response in a conditioning experiment or situation.

Reinforcement Schedule

A plan for how and when reinforcement will be delivered in operant conditioning to encourage certain behaviors.