Lect_7_Genetic_Variation

random mang no selecon no migraon no mutaon

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

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...
View Full Document

This note was uploaded on 02/10/2014 for the course ECOL 335 taught by Professor Reinthal during the Spring '10 term at Arizona.

Ask a homework question - tutors are online