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1 EXAM II - KEY BIO 370 - EVOLUTION NAME _______________________________ FALL 2014 STUDENT EID ________________________ Please write in ink only. If you write in pencil, we will not re-grade your exam. Please write your name and student EID on EACH page. This exam has two parts: 1) a multiple choice part with 10 questions worth 4 points each (total of 40 points), and 2) a short answer section with 13 questions worth a total of 60 points. The multiple choice part is to be answered using the provided scantron and should take you no more than 10 minutes, which will leave you with 65 minutes to answer the short answer questions. Please answer the short answer questions as succinctly as possible. Limit your answers to the space provided. Do not write any of your answers on the backs of the pages. Academic dishonesty will not be tolerated. Good luck!
2 NAME ________________________ EID _______________ Short Answer (60 points total for this section) 16. What are the general consequences of genetic drift within and among populations? (4 Points) 17. Sewall Wright showed that in a finite population the probability that any one allele will drift to fixation is equal to what? Give an example. (4 points) . 18. What is observed heterozygosity? What is expected heterozygosity? If expected heterozygosity decreases by an average factor of 1/2N in each generation, what effect does population size have? (5 points)