Anthro Week 3 Lecture Notes

Anthro Week 3 Lecture Notes - How Natural Selection Works...

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 2/16/11 Mechanisms of Biological  Natural Selection Gene flow Mutation Gene drift
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 2/16/11 Click to edit Master subtitle style Natural Selection Developed by Charles Darwin  (1809-1882) Developed also by Alfred  Russell Wallace
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 2/16/11 Click to edit Master subtitle style Darwin’s Premises of  Natural Selection There is variation within living population Variation can be inherited from parents Organisms tend to overproduce There is a struggle for survival Only the fittest survive Over time there will be an accumulation of favorable  traits that will lead to a new species
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 2/16/11
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Unformatted text preview: How Natural Selection Works Differential mortality Differential fertility 2/16/11 Important terms: Gene Pool The total complement of genes shared by reproductive members of a population Evolution 2/16/11 B = 98% c = 2% B = 00% c = 100 % Beginning Population 200 Years Later 400 Years Later B = 50% c = 50% 2/16/11 Understanding Gene Flow Gene Flow Changes in the frequency of alleles over time within a population due to migration or due to exchanges of alleles between populations. Click to edit Master subtitle style 2/16/11...
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Anthro Week 3 Lecture Notes - How Natural Selection Works...

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