What part of the Y chromosome have researchers identified as an important component in sexual differentiation?
A) Müllerian inhibiting substance gene
B) Sex-determining region Y (SRY) gene
C) Penile growth region Y (PGR) gene
D) Testicle-development gene (TDG)
B
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Research on persuasion suggests that attitude change is encouraged when the communicator is
a. likable. b. a novice on the topic. c. dissimilar to the audience in some respect. d. an authoritarian personality.
Dr. Brown conducts an experiment to examine the effects of mentorship programs on children's academic achievement. She finds that children who are given mentors receive significantly higher grades than children who are not. The result is statistically significant at the .05 level. What does this mean?
a. The finding probably occurred by chance; mentorship programs probably DO NOT really improve academic achievement. b. The finding probably did NOT occur by chance; mentorship programs probably DO boost academic achievement. c. The finding was larger than expected; mentorship programs appear to be even more effective than Dr. Brown suspected. d. The finding was smaller than expected; mentorship programs appear to be less effective than Dr. Brown suspected.
Intellectual disability is found
a. more in girls than boys. b. more in boys than girls. c. equally in girls and boys. d. there has been no correlation to gender determined.
Which of the following is a synthetic opioid that is 100 times more potent than morphine?
a. heroin b. methadone c. codeine d. fentanyl