Problem Set #2 (answers)

Problem Set #2 (answers) - Anthropology 5 Fall 2008 Problem...

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Anthropology 5 Fall 2008 Problem Set # 2 To do this problem set you should have read Chapter 2 of your textbook and the “Vasopressin” paper. 1. To be subject to evolution by natural selection a trait must be transmitted reliably from parent to offspring. A. In Darwin’s day, people believed in a “fluid” or “blending” model of heredity. Why would such a system not support evolution by natural selection? The idea of “fluid” or “blending” model of heredity would not support evolution by natural selection because in the end the new variation that would have blended with the current genetic makeup would end up simply diminishing as new variations blended with the previous genetic makeup. It would be like a bottle ink, no matter how dark the color, if put into a large body of water would not have a definite change in that body of water. B. How does the behavior of Mendelian genes differ from this blending model? Mendelian genes state that there is a dominant and recessive trait in genes. Take for example the green and yellow peas. The F 1 generation when bred would create 3 peas
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This note was uploaded on 10/13/2008 for the course ANTH 5 taught by Professor Gaulin during the Fall '07 term at UCSB.

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Problem Set #2 (answers) - Anthropology 5 Fall 2008 Problem...

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