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:

Medical Community

A collective term for all the healthcare professionals and organizations involved in the practice and study of medicine.

Tension Reduction Hypothesis

A theory suggesting that certain behaviors (e.g., substance use) are motivated by a desire to reduce stress or negative emotions.

Physical Symptoms

Observable signs or indications of a medical condition or disease.

Withdrawal

Adverse physiological reactions exhibited when a drug-dependent person stops using that drug; the withdrawal symptoms are typically unpleasant and opposite to the drug’s effects.