Under runaway sexual selection, which of the following is/are reasons for "exaggerat-ed" male ornaments?
a. An exaggerated ornament increases male survival.
b. The genes for male ornament and female preference are tightly genetically linked.
c. A male's fitness is increased by virtue of being attractive to females.
d. An exaggerated male ornament is unrelated to resistance against parasites.
e. B and C.
E
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A form of mutation associated with the expansion in copy number of a nucleotide triplet in or near a gene is called
a(n) ____________________ Fill in the blank(s) with the appropriate word(s).
Which situation is most likely to decrease genetic variation?
A. directional selection B. mutation C. stabilizing selection D. diversifying selection
Pathogens are engulfed by ____________________ during the first stage of an inflammatory response and by
____________________ during the last stage of the response. Fill in the blank(s) with the appropriate word(s).
A chiral compound cannot be superimposed on its mirror image. By this definition your hands would be considered chiral compounds.
a. true b. false