A chromosome’s gene sequence that was ABCDEFG
before damage and ABFEDCG after is an example of
a. inversion.
b. deletion.
c. duplication.
d. translocation.
e. aneuploidy.
Answer: a
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Which of the following terms best fit with the
theory of uniformity?
a. gradual b. catastrophic c. abrupt d. extinction e. more than one of these
Within a food web, herbivores are considered to be
A) basal species. B) intermediate species. C) top predators. D) represented at any level.
A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A woman with normal vision whose father is color-blind marries a color-blind male. What is the probability that a son of this couple will be color-blind?
A) 0 B) 1/4 C) 1/2 D) 3/4 E) 1
The pronghorn antelope of the United States and the saiga antelope of the central Asian steppes live in similar habitats and have similar adaptations. Which of the following features would you be surprised to find in a saiga antelope?
A) camouflaging coloration B) teeth adapted to grinding tough forage C) a warmly insulating winter coat D) a digestive tract without cellulose-digesting bacteria