091307_PopulationGenetics

091307_PopulationGenetics - 9/13/2007 Intro to Organismal...

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9/13/2007 1 Intro to Organismal Biology 9/13/07 Announcements 2 1. Wildlife Biology Club 2. Please bring laptop to next three weeks of lab Questions? 3 Today’s class Evidence for evolution, continued The Modern Synthesis & Population genetics Hardy-Weinberg Equilibrium (Relevant reading: Ch. 22-23) 4 5 Comparative anatomy Evidence for evolution: Homology Evidence for evolution: Homology Comparative anatomy: Vestigial organs Snake hind limb buds (Boas and pythons) Blind cave tetra fish 6 American Museum of Natural History www.amnh.org/ American Museum of Natural History www.amnh.org/ Ken Lucas Why would a species lose a trait over time?
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9/13/2007 2 7 Molecular biology Evidence for evolution: Homology Evidence for evolution Evolution by natural selection predicts: Fossils in older rocks should differ consistently from those in younger rocks. Species descended from common ancestors
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091307_PopulationGenetics - 9/13/2007 Intro to Organismal...

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