A polymorphism of the CYP-2C19 gene causing slow metabolism of benzodiazepine will cause…
a. weaker anxiolytic effects.
b. weaker passage through the blood-brain barrier.
c. greater likelihood of tolerance.
d. longer-lasting effects.
Ans: D
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Stopping at a red light and going forward on green illustrates which aspect of operant conditioning?
a. Fixed-ratio schedule b. Negative reinforcement c. Stimulus generalization d. Discrimination
Sarin gas is a type of organophosphate. It was released in a Tokyo subway in 1995 by a religious sect, killing 12 people. Organophosphates are dangerous because they
A. prevent the reuptake of ACh, reducing the amount available for subsequent signaling. B. stimulate a larger than normal release of ACh, leading to convulsions and death. C. interfere with AChE, allowing ACh to overstimulate muscle fibers. D. occupy receptor sites for ACh, preventing further signaling and paralyzing muscles.
Which woman is more likely to delay parenthood or decide against it altogether?
A) Coral, who has a traditional gender-role orientation B) Renée, who has a high-status, demanding job C) Hermilia, who works at a low-level, undemanding job D) Amanda, who is unemployed
A researcher notices that the participants assigned to the experimental group were less likely to attend the second session in his experiment than those in the control group
The researcher is concerned that __________ might represent a potential threat to the internal validity of her study. a. history b. attrition c. instrumentation d. maturation