352_Outline11_S11 - Biology 352 Lecture 11 LECTURE 11: The...

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Lecture 11 Spring 2011 1 LECTURE 11 : The Hardy-Weinberg Principle I. Last time. A. Evolution: "genetic changes in populations over time." B. Populations have gene pools. C. Gene pools described by genotypic and allele frequencies. II. The Hardy-Weinberg Principle. A. Proposed independently in 1908 by G.H. Hardy (British mathematician) and W. Weinberg (German physician). B. Hardy-Weinberg Law : under certain conditions, the frequencies of genotypes and alleles in a population of diploid, sexually reproducing organisms will remain constant over time. C. Hardy-Weinberg equilibrium (HWE): a non-evolving state. III. The Hardy-Weinberg Principle: How it works. A. A simple model. 1. A gene in a population with alleles A and a . 2. Allele frequencies are f( A ) = p and f( a ) = q. 3. Allele frequencies in gametes are ALSO p and q. B. Gametes drawn at random to form zygotes of the next generation. C. Genotype frequencies in the next generation.
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This note was uploaded on 05/07/2011 for the course BIOLOGY 352 taught by Professor Townsend during the Spring '08 term at San Diego State.

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352_Outline11_S11 - Biology 352 Lecture 11 LECTURE 11: The...

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