Lect_7_Genetic_Variation

# random mang no selecon no migraon no mutaon

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Unformatted text preview: alleles? Method 2: Using genotype counts S/S S/F F/F 3 9 5 Freq. 3/17 9/17 5/17 Freq. 0.176 0.530 0.294 Genotype frequencies What is the frequency of the S and F alleles? Method 2: Using genotype counts S/S S/F F/F 3 9 5 Freq. 3/17 9/17 5/17 Freq. 0.176 0.530 0.294 Frequency of S = 0.176 + (0.530)/2 = 0.441 Frequency of F = 0.294 + (0.530)/2 = 0.559 Genotype frequencies Allele frequencies Thinking about allele frequencies using probabili'es: Freq (S) = Freq (SS) x 1 + Freq (SF) x 1/2 + Freq (FF) x 0 Prob. sampling S = Prob. Sampling genotype SS X Probability of sampling S from SF Freq (S) = Freq (SS) + Freq (SF)/2 Generaliza'on of Hardy- Weinberg principle: Single locus, two alleles: A, a Three possible diploid genotypes: AA, Aa, aa Frequency of A alleles = p Frequency of a allele...
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## This note was uploaded on 02/10/2014 for the course ECOL 335 taught by Professor Reinthal during the Spring '10 term at Arizona.

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