Which of the following is NOT a characteristic of turtles?
a. a carapace
b. jaws
c. teeth
d. a plastron
Ans: c. teeth
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Which of the following is a possible human genotype that could result from nondisjunction of the sex chromosomes in one of the parental gametes?
A. XXY B. XYY C. XXX D. XO E. All of the answer options are correct.
In cats, short hair L is dominant to long hair l,
and black hair B is dominant to brown hair b. If you found a black, short-haired cat, you could determine his genotype by crossing it to an animal with a genotype of
a. LLBB. b. llBB. c. llBb. d. llbb. e. LLbb.
Formation of a tetraploid plant species from two different diploid parental species of plants is an example of
A. punctuated equilibrium. B. gradualism. C. extinction. D. a postzygotic barrier to evolution. E. a prezygotic barrier to evolution.
Which addition to the information in the paragraph above would make more than one of the answers listed in the previous question correct?
A) If larynx size was also affected by the amount the larynx was used (i.e., the amount of vocalization). B) If males prefer to mate with females possessing higher voices. C) If females killed female offspring whose voices were too deep. D) If the trend described above was seen in the fossil record of only one species of ape.