8crandom08

8crandom08 - Where we are going Link variation in...

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1 Where we are going Link variation in morphology with variation in genomes Single and multi-locus traits  (Review) Levels of variation possible Sources of genetic (DNA) variations Sexual recombination (Review) Mutation Predict frequency of genotypes (phenotypes)  Individuals (Review) Populations How  genomes are selected, sorted and why they accumulate How evolution happens Non-random natural selection Random mechanisms*** Maintaining variation Special examples of accumulating genomes Sexual selection Kin selection
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2 After viewing this presentation: 1. Discuss the difference between a random and a non random event. 2. Describe sampling error 3. Understand bottle neck and founder effect in terms of sampling error. How does this result in “evolution?” 4. Discuss why infinitely large populations are less likely to exhibit random fluctuations in allele and genotype frequency 5. Discuss why small populations do exhibit fluctuations (drift) Next set of slides 6. Describe how gene flow can cause changes in allele frequencies 7. Understand how change in allele frequency by gene flow is non adaptive 8. Describe both positive and negative assortive mating 9. Understand how positive and negative assortive mating affect the genotype frequency deviations from HW predictions 10. Describe how the new frequencies under non random mating affect the exposure of alleles to the effects of natural selection.
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3 I. Review some concepts A. Evolution B. define adaptive and neutral alleles C. HW equilibrium II. Evolution by non-adaptive mechanisms (not ns) A. Random samples B. Gene flow (migration) C. Non-random mating (random mating) 
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This note was uploaded on 04/17/2008 for the course BIO 111 taught by Professor Lynsajdak during the Spring '08 term at Rochester.

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8crandom08 - Where we are going Link variation in...

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