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BS 10-17 - BS 110 EXAM#2 Review H-W Equilibrium P Q = 1 to...

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October 17, 2007 BS 110 EXAM #2 Review H-W Equilibrium P+Q = 1 to determine allele frequency P^2 + 2PQ + Q^2 to determine genotype frequency -- People (Darwin etc) are fair game; know what they did --Monophyletic – means 1 group, & all members of the group evolve from a common ancestor -- Synapomorphy -- Sticky Capsule – stages or types of bacteria; associated with parasitic hard to kill -- Endospores – associated with freeliving; hard to kill with the human defense systems. Balanced Polymorphism – when phenotypes occur (or are maintained) in the same percentages / proportions from one generation to the next (atypical – we would not expect that) Disruptive (Diversifying) Selection – if we start with a pop, through natural selection, the extreme phenotypes increase and the intermediate phenotypes decrease Ecotypes are distinct populations on a species. These populations are discontinuous. In contrast to a Cline – graded change in a characteristic over a geographical distribution of
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