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EEMB2_Final_Salmon

W of 70 then the expected average w for their

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w of 70, then the expected average w for their children would be: A. 10 B. 20 C. 40 D. 50 E. None of these answers is correct 34. If a plot were made of the average w of parents (X) and average w of their adopted offspring (Y) from 1,000 families, then the expected slope of the best-fitting line to these data (Y vs. X) would be : A. 0.0 B. 0.25 C. 0.5 D. 0.8 E. None of these answers is correct 35. Suppose that a new study showed that adopted children of foster parents with high w values have average w values that were higher than 10. This information would indicate that our estimate for the heritability of the w (calculated and used in the above problems) would be: A. too low B. unaffected C. too high D. zero E. None of these answers is correct EEMB2 Final Salmon Version: 0P a g e : 1 0
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Use the following information for the next 5 questions (until you see a solid line): An extensive black lava flow is located in an undeveloped region of Nevada. Lizards on both sides of the lava flow are brown. Lizards living on the sparsely vegetated lava flow are black. In the middle of the lava flow is a large lake surrounded by a narrow band of lush green vegetation. Lizards living in this narrow band of vegetation around the lake are green. All three lizard color morphs are well camouflaged from predation by local predators when the soil or the vegetation matches their color, and lizards rapidly return to soil or vegetation matching their color when moved to nearby areas with non-matching color. A molecular study found that the the color morphs are part of a single clade with a polytomy between the green and black taxa. When raised in zoo cages, black and brown and black and green color morphs interbreed and produce fertile offspring (of intermediate color between that of the parents). In a zoo setting, green and brown morphs do not interbreed and artificial insemination leads to sterile offspring. Despite extensive field studies on all three lizard populations, no hybrids have been observed. 36. Reproductive isolation most probably evolved between black and brown lizards via: A. Prezygotic isolation B. Geographical isolation C. Habitat specialization D. Postzygotic isolation E. Answers A & C are both correct 37. What factors probably contributed to the evolution of reproductive isolation between green and brown lizards: A. Pleiotropy causing postzygotic isolation B. Pleiotropy causing prezygotic isolation C. Allopatry D. Adaptation to different habitats E. All of the above answers are correct 38. Reproductive isolation probably evolved between green and black lizards via: A. The allopatric speciation process B. The sympatric speciation process C. Pleiotropy causing positive assortative mating D. Pleiotropy causing infertility E. Answers B & C are both correct 39. Because matings between green and black lizards produced yellow offspring, natural selection would favor A. Positive assortative mating B. Hybrid sterility C. Allopatric speciation D. Pleiotropy E. Answers C & D are both correct EEMB2 Final Salmon Version: 0P a g e : 1 1
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40. Because the brown and black lizards were capable of producing fertile offspring when
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