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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Which situation is most likely to decrease genetic variation?
A. directional selection B. mutation C. stabilizing selection D. diversifying selection
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).
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