8. Assume that the black points describe a genetic correlation between trait 1 and trait 2. Trait 1 a) Do you expect the population to evolve more easily towards a new optimum given selection vectors oriented as in box 1, or as in box 2? Explain. (4 Answer: Trait 2 b) Given selection vectors oriented as in box 2, what might you expect to happen to the correlation between trait 1 and trait 2 over time? Explain. ( Answer: 9. The breeder's equation is: D = h'S, where Dis the response to selection in a phenotypic trait, h² is heritability and S is the selection differential. Assume selection occurs, such that mean parental size is 60 cm in length before selection, and 40 cm after selection. The graph below shows the relationship between mean offspring size and mean parental size. Assume all variation is due to genetics (no shared environment effects) and the graph area is a square. Given this information, predict: a) D, the response to selection. Show your work. (2 Answer: b), the mean size of offspring after selection. Show your work. Answer:

8. Assume that the black points describe a genetic correlation between trait 1 and trait 2. Trait 1 a) Do you expect the population to evolve more easily towards a new optimum given selection vectors oriented as in box 1, or as in box 2? Explain. (4 Answer: Trait 2 b) Given selection vectors oriented as in box 2, what might you expect to happen to the correlation between trait 1 and trait 2 over time? Explain. ( Answer: 9. The breeder's equation is: D = h'S, where Dis the response to selection in a phenotypic trait, h² is heritability and S is the selection differential. Assume selection occurs, such that mean parental size is 60 cm in length before selection, and 40 cm after selection. The graph below shows the relationship between mean offspring size and mean parental size. Assume all variation is due to genetics (no shared environment effects) and the graph area is a square. Given this information, predict: a) D, the response to selection. Show your work. (2 Answer: b), the mean size of offspring after selection. Show your work. Answer:

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 3TYU: The MN blood group is of interest to population geneticists because (a) people with genotype MN...

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