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questions_week-4_13

On the east side of the island the mutation would be

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51) On the east side of the island, the mutation would be expected to: a) Increase due to the operation of intrasexual selection b) Increase due to the operation of intersexual seelction c) Decrease due to the operation of intrasexual selection d) Decrease due to the operation of intersexual seelction e) None of these answers is correct 52) On the west side of the island, the mutation would be expected to: 53) On the east side of the island, the mutation would be expected to: 54) If another mutation recurrently arose that caused females to slightly increase their preference for red-beaked males (so that red-beaked males have increased mating success with these females, i.e., their mating success is increased to 25% compared to black-beaked males), then:
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55) Now suppose that, through pleiotropy, the mutation that produced red bills also caused males to provide females with fewer resources. If the mutation increased male fitness by 20% but decreases the fitness of the males’ mates by 50%, then: a) The sexual conflict model of sexual selection could begin to operate on the east side of the island b) The sexy-sons model of sexual selection could begin to operate on the east side of the island c) The good genes model of sexual selection could begin to operate on the west side of the island d) The sexy-sons model of sexual selection could begin to operate on the west side of the island e) Answers a & c are both correct _____________________________________________________________________________ Use the information below for the next two questions (until you see a bar beneath the question) Suppose that there are two large farms located near one another. One farm begins to use seeds purchased from a seed company (commercial-seeds) to plant its crops each year. The other farm begins to use some of the seed left over from last year’s harvest (local-seeds) to plant its crops each year.
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