POPGEN - unrestricted mating and no lethal phenotypes....

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POPULATION GENETICS Population :  community of sexually interbreeding or potentially interbreeding individuals Gene Pool :  consists of all the genes in all their allelic allelic forms in the reproductive  gametes of a population. Gene Frequency :  the percentage of alleles of a given type in a population. Hardy-Weinberg Law :  the principle that both gene and genotype frequencies will  remain in equilibrium in an infinitely large population in the absence of  mutation, migration, selection, genetic drift and meiotic drive. Stable Gene Pool : gene frequencies remain constant from one generation to another.  Population exists in Hardy-Weinberg equilibrium. Hardy-Weinberg equilibrium can be achieved if you have a large population with 
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Unformatted text preview: unrestricted mating and no lethal phenotypes. POPULATION CHANGES THAT ALTER THE GENE FREQUENCIES 1. Mutation: heritable changes in the DNA or chromosome structure resulting in the production of a different allele. 2. Selection: wide variety of mechanisms responsible for modifying the reproductive success of a genotype. 3. Genetic Drift: an atypical sampling of a population which forms a new isolated population. 4. Migration: movement of members of one population to another sexually compatible population. FORMULAS 1. Gene frequency p + q = 1 2. Genotype frequency p 2 + 2pq + q 2 = 1...
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POPGEN - unrestricted mating and no lethal phenotypes....

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