Which of the following is true of identical twin studies?
A) It is clear that fraternal twins reared together are more likely than identical twins to exhibit similar behaviors.
B) The study of monozygotic twins is important because it helps us, to some extent, identify genetic versus environmental causes of behavior.
C) Even biological characteristics such as hair and eye color are somewhat influenced by environment.
D) The study of dizygotic twins is important because it helps us rule out environmental causes of behavior.
B
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An elderly acquaintance of yours has suffered from partial blindness in one eye since she had a stroke. Apparently the stroke damaged her
a. occipital lobe. b. parietal lobe. c. temporal lobe. d. reticular formation.
The exchange of chromosome segments during meiosis results in __________
A) severe mutations B) incredible variability among siblings C) higher rates of fraternal twins D) higher numbers of female zygotes than male zygotes
In the one factor between groups design, systematic variance between groups can be reduced by _____
a. using Tukey's HSD test c. making multiple comparisons b. improving the design d. using ANOVA instead of t tests
Select the statement that is FALSE about cocaine
A) It inhibits the reabsorption of dopamine by the nerve cells. B) Large doses are associated with anesthetic and convulsant effects. C) Deaths have been reported after relatively low doses of the drug. D) Cocaine, although powerful in effect, is not highly addictive.