A mutation of the __________ gene is a known genetic cause of schizophrenia
a. PKC
b. DISC1
c. CD4
d. APC
e. OSE
Answer: b. DISC1
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The role of heredity in late-onset Parkinson's disease ____
a. equals that of early onset Parkinson's disease b. is probably not as great as with early onset Parkinson's disease c. is greater for DZ twins that MZ twins d. is greater for females than males
Learning that occurs without obvious reinforcement and remains hidden until reinforcement is provided is known as
a. instrumental learning. b. latent learning. c. covert conditioning. d. respondent conditioning.
Which of the following is true of Turner syndrome?
a. It is caused by an abnormality of the sex chromosomes. b. It is caused by two X chromosomes. c. It affects women and men in about equal proportions. d. It is related to the mother's age when she becomes pregnant.
The average income has ______ in the United States in the past 50 years
stayed the same tripled quadrupled doubled