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311Dsp08Evolve3 - Answer key posted on the class webpage...

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Answer key posted on the class webpage Office hours: Th 11:30am-2pm F 12:30-1:30pm Exam Error Worksheet Bonus #1 due F 2/15
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Evolution: A species’ genetic component changes as the individuals reproduce due to… Non-random changes (natural selection) Random changes (genetic drift/bottleneck) Mutations add new alleles or genes
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CB 23.7 Evolution can occur randomly, by genetic drift.
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CB 23.8 Other random evolution, Bottleneck
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CB 23.8 Bottleneck: northern elephant seals… In 24 genes studied, there was no variation (all homozygous).
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Evolution: A species’ genetic component changes as the individuals reproduce due to… Non-random changes (natural selection) Random changes (genetic drift/bottleneck) Mutations add new alleles or genes
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Mutations add new alleles/genes, that are then subject to selection/drift
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Coincidence of malaria and sickle-cell anemia CB 23.13 How could this occur?
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Generation 1 Generation 3 Generation 4 Generation 5 Generation 2 Mutation Replication Drift Selection Mutations are subject to Drift and Selection
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CB 23.12 What determines advantageous traits?
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