Which scenario best illustrates the concept of genetic drift?
a. Twelve thousand years ago Native Americans traversed the Bering Strait to settle in the Americas, causing different genetic traits to be favored over others.
b. The genetic mutation that causes sickle cell anemia also increases resistance to malaria, increasing the frequency of the diseased allele in the general population.
c. The prevalence of depression is greater in populations where the serotonin transporter gene translocated to position q21 along chromosome 17.
d. There is a higher than average rate of Ellis-van Creveld syndrome in the Amish community because the diseased allele was introduced by some of the original Amish settlers.
ANSWER:
d
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Mark is a Southern gentleman. He always stands up when a woman enters the room and offers her his chair. He is quick to get the doors for his female companions, and he always pays when they go out. Mark probably scores high on ____
a. hostile sexism b. benevolent sexism c. confirmation bias d. self-serving bias
Describe a normal sleep cycle.
What will be an ideal response?
A legitimate medical use of an amphetamine is the treatment of
a. attention-deficit hyperactivity disorder. c. seizures. b. insomnia. d. psychosis.