Which of the following must be true for a female to have hemophilia?
a. Her mother is not a carrier and her father has the disease.
b. Her mother is homozygous normal and her father is a carrier.
c. Her father and mother are heterozygous.
d. Her mother is a carrier and her father has the disease.
e. Her father is heterozygous.
d
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All of the following are usually a part of the aging of reproductive systems EXCEPT ____
a. declining levels of estrogen b. menopause c. loss of sexual response d. decreased fertility e. declining testosterone levels
Bats, by emitting high-pitched sounds, can detect distant objects via:a
olfaction. b. echolocation. c. lateral line organs. d. sensory adaptation. e. ommatidia.
You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style. This is an example of a(n)
A) experimental question. B) type of observation. C) hypothesis. D) experiment.
If a species has 42 pairs of chromosomes, which value represents the number of combinations of
maternal and paternal chromosome combinations that will be sorted to the poles?
a. 422 b. 242 c. 221 d. 212 e. 842