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Unformatted text preview: Study Questions: Exam 2 Bio370 Evolution 1. In the 1960s several techniques were developed for screening genetic variability in natural populations (e.g., allozyme electrophoresis and DNA sequencing). Evolutionary biologists were surprised by the relatively high levels of diversity observed. Why were they surprised? What evolutionary processes might explain the amount of diversity observed. 2. What effect does genetic drift have on the distribution of genetic variation within and among populations? What effect does gene flow have on genetic variation within and among populations? 3. The Eugenics movement was active in the early decades of this century and sought to improve the genetic characteristics of the human population by preventing individuals with various undesirable traits from reproducing. Recognizing that most deleterious traits are recessive, use your knowledge of population genetics theory to argue a strong case against the effectiveness of such programs in eliminating these mutations from the human...
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