Multiple Choice
Methadone is a drug given to treat heroin addicts. It works by binding to the same receptors as heroin but with greater affinity, thereby preventing heroin from binding. This is an example of
A) competition.
B) down-regulation.
C) signal transduction.
D) agonistic behavior.
E) up-regulation.
Correct Answer:

Verified
Correct Answer:
Verified
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