BIOC54H3 Study Guide - Midterm Guide: Selective Breeding, Bluegill, Operational Sex Ratio

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9 May 2012
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Which of the following has been shown to affect the amount of a
male’s “mate guarding” of a female?
(a) variation in the operational sex ratio
(b) the presence of an egg in the female’s nest
(c) the number of male neighbors in close proximity
(d) the presence of male neighbors who are unusually
sexually attractive
(e) All of the above have been shown to affect the amount
of a male’s “mate guarding” of a female.
A male bluegill sunfish who uses the “sneakermating tactic will
have male offspring who
(a) will all be “Sneaker” males.
(b) will all be “Cuckholder” males who may adopt either a
“Sneaker” or “Satellite” mating tactic.
(c) may be any type of male (“Sneaker”, “Satellite” or
“Parental”) depending on the environmental
conditions.
(d) may be any type of male (“Sneaker”, “Satellite” or
“Parental”) depending on their mother’s genotype.
(e) all die at an earlier age than the majority of other males.
A “conditional strategy is unquestionably an adaptation when
individuals able to switch tactics
(a) leave some surviving descendants to carry their genes
into the next generation.
(b) leave more surviving offspring than individuals using any
other strategy.
(c) can leave surviving offspring who will adopt the most
successful tactic.
(d) are better able to adjust to changing conditions than
other members of their species.
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