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questions_week-4_13

Protein e binds to a receptor receptor e in the

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Protein-E binds to a receptor (Receptor-E) in the female’s ovary and causes her to double her egg-laying rate for a period of 24 hours. Protein-A binds to a receptor in the females reproductive tract (Receptor-A) and causes her to produce an antibiotic for 24 hours in response to mating. 66) If the binding of Protein-E to Receptor-E caused a female to draw-down her energy stores, thereby reducing her later-life fecundity and causing a net 10% decline in lifetime fitness, then you would expect: A) R eceptor-E to evolve to more effectively bind with Protein-E B) Receptor-E and Protein-E to coevolve antagonistically C) Receptor-E to evolve to bind less well with Protein-E D) Answers B & C are both correct E) None of these answers is correct 67) If in the above question you observed a net 10% increase a female’s lifetime fitness, then you would expect: 68) If Protein-A and Receptor-A both evolved rapidly over a protracted period of time, then this would be most consistent with: 69) If Protein-E and Receptor-E both evolved rapidly over a protracted period of time, then this would most consistent with: 70) Suppose two experimental fruit fly lines were constructed. In line-1, at the end of each generation the pathogenic bacteria were collected from the flies and used to inoculate naïve flies taken from a different bacteria-free population. In line-2, both flies and their pathogenic bacteria were transferred to each successive generation. After 100 generation of propagating you would expect: A) The bacteria would harm the flies more in line-1 compared to line-2 B) The bacteria would harm the flies more in line-2 compared to line-1 C) Antagonistic coevolution would occur in line-1 D) Mutualistic coevolution would occur in line-2 E) Both answers A & C are correct .
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Use the following information for the next 5 questions (until you see a solid line): Jane Schmoe discovers an archipelago of 4 islands (a small cluster of islands, named A, B, C, and D). Each island has a unique species of flightless bird. She uses molecular data to construct a phylogeny of the birds. All females have drab brown coloration, but the males sometimes have brightly colored heads and legs and this male-limited phenotype is used to name the species. All the species are derived from a continental species with drab legs and drab heads in both sexes. Females on the continent, and islands B, D, and C, have a preference
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