Disassortative mating may be beneficial because:
a. it will likely reduce the probability of a deleterious recessive being expressed.
b. it will maximize the genetic diversity in the offspring.
c. it makes it easier to find a mate.
d. A and B.
e. All of the above.
D
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In early ancestors of the modern giraffe, longer necks allowed animals to reach higher tree branches as food. This would lead to ____ in the ancestral giraffe population.
A. disruptive selection B. directional selection C. sexual selection D. genetic drift E. stabilizing selection
XYY males tend to
a. have reproductive problems. b. be slightly retarded. c. have learning disabilities. d. be sterile. e. develop normally.
Refer to the accompanying figure. In which region will the osmolality of the filtrate be at the lowest value?
a. 3 b. 5 c. 6 d. 9 e. 10
When electrons are removed from nutrients via an oxidation reaction, the coupled reduction reaction may be
A) NAD+ ? NADH. B) NADH ? NAD+. C) FAD ? FADH2. D) either FAD ? FADH2 or NAD+ ? NADH. E) either NAD+ ? NADH or NADH ? NAD+.