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Unformatted text preview: after one generation of random breeding. • Significance of HW: changes in allele frequency are the genetic basis of evolution. Value of Hardy-Weinberg Principle • Can Evaluate factors that cause populations to evolve Assumption Exception Effect 1. Individuals must randomly mate a. Inbreeding Decrease or /Outbreeding increase in genetic diversity 2. No migration a. Migration Homogenize different Populations 3. No mutation a. Source of all Increase Genetic Variation 4. No selection – all individuals are equally fit and reproductively successful a. Directional Selection Reduce variation b. Disruptive Selection Increase Variation c. Stabilizing Selection Increase Variation 5. Population must be very large a. Genetic Drift Reduce Variation (tend to loose rare alleles)...
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