EvolutionPrinciples160-page8 - Recombination Independent...

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Principles of Evolution - 8 Biogeographical Data Distribution of organisms based on plate tectonics and continental drift explains diversity of organisms based on divergence and time. The Australian plate separation resulted in separation of marsupials. Placental animals in other areas of the world fill the same environmental niches. Genetic Origins of Variation Meiosis and sexual reproduction Homologous chromosomes of diploid individuals with gene pairs Segregation of homologous chromosomes in meiosis
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Unformatted text preview: Recombination Independent assortment of homologous chromosomes during meiosis New combinations of alleles with each fertilization Mutation Changes in the DNA sequence which are passed on by subsequent cell divisions Changes in gene pool frequencies Recall that evolution deals with changes which involve populations; an individual does not genetically evolve. The gene pool of a population is the total combination of alleles of all of the members of that population....
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.

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