How do sperm cells develop?
A. Through meiosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 chromosomes.
B. Through meiosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 pairs of chromosomes.
C. Through mitosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 chromosomes.
D. Through mitosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 pairs of chromosomes.
Answer: A
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In American couples, infertility occurs in approximately
a. one in 6 or 7 couples. b. one in 15 couples. c. it depends upon ethnicity. d. it depends upon socioeconomic status.
Which statement about polygamy is most accurate?
a. Polygamy offers heterosexual women more choices. b. Polygamy provides benefits to men, especially powerful men, but not women. c. Polygamy is associated with social reforms that favor equality among men d. Polygamy clearly favors the majority of men.
Keren's doctor tells her that she has high sympatho-adreno-medullary (SAM) reactivity. This, says her doctor, is a sign of stress. The doctor probably concludes this on the basis of Keren's ____ level in her blood
a. ?catecholamine b. ?serotonin c. ?androgen d. ?estrogen
Leon has been diagnosed with an intellectual disability, which means he has an IQ below 70 and significant impairment in which of the following?
a. kinesthetic skills b. adaptive behaviors c. divergent abilities d. automatic processing