populus is not my friend
(the modeling program, not the game)
Questions 4-6. Several species of flies exhibit three distinct color morphs, black (BB), brown (Bb), and yellow (bb), produced by two alleles at a single locus. To test the impact of pesticides on these morphs, you establish separate populations from Australia, the Mediterranean and South America, expose them to pesticide for one week, and then count survivors. To determine the long term effects of treatment, this is done for many generations until the populations become
stable (e.g., attain equilibrium). For questions 4-6 below, assume only selection is operating.
4. Using this approach you obtained the following relative fitnesses for the Australian population: black (BB) = 0.25, brown (Bb) = 1.0, and yellow (bb) = 0.75. If this pesticide were used in Australia, which color morph(s) would you expect to remain after prolonged treatment?
(a) black only,
(b) yellow only,
(c) all three,
(d) either black or yellow but not both.
5. Using this approach you obtained the following relative fitnesses for the Mediterranean population: black (BB) = 1.0, brown (Bb) = 0.75, and yellow (bb) = 0.50. If this pesticide were used in the Mediterranean, which color morph(s) would you expect to remain after prolonged treatment?
(a) black only,
(b) yellow only,
(c) all three,
(d) either black or yellow but not both.
6. Using this approach you obtained the following relative fitnesses for the South American population: black (BB) = 1.25, brown (Bb) =1.0, and yellow (bb) = 1.75. If this pesticide were used in South America, which color morph(s) would you expect to remain after prolonged treatment?
(a) black only,
(b) yellow only,
(c) all three,
(d) either black or yellow but not both.
Anyone? If I have to deal with this crap, so do you.
Questions 4-6. Several species of flies exhibit three distinct color morphs, black (BB), brown (Bb), and yellow (bb), produced by two alleles at a single locus. To test the impact of pesticides on these morphs, you establish separate populations from Australia, the Mediterranean and South America, expose them to pesticide for one week, and then count survivors. To determine the long term effects of treatment, this is done for many generations until the populations become
stable (e.g., attain equilibrium). For questions 4-6 below, assume only selection is operating.
4. Using this approach you obtained the following relative fitnesses for the Australian population: black (BB) = 0.25, brown (Bb) = 1.0, and yellow (bb) = 0.75. If this pesticide were used in Australia, which color morph(s) would you expect to remain after prolonged treatment?
(a) black only,
(b) yellow only,
(c) all three,
(d) either black or yellow but not both.
5. Using this approach you obtained the following relative fitnesses for the Mediterranean population: black (BB) = 1.0, brown (Bb) = 0.75, and yellow (bb) = 0.50. If this pesticide were used in the Mediterranean, which color morph(s) would you expect to remain after prolonged treatment?
(a) black only,
(b) yellow only,
(c) all three,
(d) either black or yellow but not both.
6. Using this approach you obtained the following relative fitnesses for the South American population: black (BB) = 1.25, brown (Bb) =1.0, and yellow (bb) = 1.75. If this pesticide were used in South America, which color morph(s) would you expect to remain after prolonged treatment?
(a) black only,
(b) yellow only,
(c) all three,
(d) either black or yellow but not both.
Anyone? If I have to deal with this crap, so do you.