The Lactose Repressor

question 37

Multiple Choice

The lactose repressor

• A)Is transcribed with the structural lac genes
• B)Is activated by binding lactose
• C)Is inactivated by binding lactose
• D)Requires lactose for its transcription
• E)None of the choices are correct

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Definitions:

Sunk Costs

Costs that have already been incurred and cannot be recovered, and should not affect future decision-making processes.

Discrimination Learning

A cognitive process where an organism learns to respond differently to various stimuli because they are associated with different outcomes.

Negative Reinforcement

A conditioning process where a negative (aversive) stimulus is removed after a particular behavior is exhibited, increasing the likelihood of that behavior occurring again.

Classical Conditioning

A learning process in which a neutral stimulus becomes associated with a meaningful stimulus and acquires the capacity to elicit a similar response.