Lecture 4 - Mutation and Hardy Weinburg

Lecture 4 - Mutation and Hardy Weinburg - We have reviewed...

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We have reviewed the natural selection model. Now, we will explore: Sources of variation - mutation Hardy Weinberg model Other population processes, e.g., drift Microevolution
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Fig. 22.4
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Favorable mutations for better competition introduced variation for selection to act upon Evolution occurred in fits and starts (uneven rate of evolution)
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Mutation rates # of new mutations in any 1 individual Fruit fly 0.14 Mouse 0.90 Human 1.60
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Genetics Review Every diploid individual has 2 copies of every gene (alleles) Genotype - genetic makeup of an individual Heterozygote - the 2 copies are different alleles Homozygote - the 2 copies are the same allele
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Allele frequencies CCR5 gene in humans Codes for cell surface protein in WBC’s 2 HIV neg individuals despite history
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32 / 32 HIV resistant + / 32 slow advance to AIDS + / + susceptible Genotype Phenotype allele
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This note was uploaded on 04/07/2008 for the course BIO 124 taught by Professor Griscom during the Spring '07 term at James Madison University.

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Lecture 4 - Mutation and Hardy Weinburg - We have reviewed...

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