Unformatted text preview: Shannon-Weaver index was used). The numbers obtained from this formula provide a measure of genetic diversity at each of the many loci tabulated by Lewontin. Four points are relevant in thinking about this measure of "diversity": 1) a locus with only one allele will have H = 0; 2) the greatest diversity will be when all alleles are equally frequent (p=q=0.5 for 2 alleles; p 1 =p 2 =p 3 =p 4 =0.25 for 4 alleles); 3) diversity will increase as the number of alleles increases (the 4 allele case above is more 'diverse' than the 2 allele case); 4) diversity is aconvex function of allele frequency (a diversity measure from a pooled sample obtained by combining alleles from two different populations will be greater than the average of the two diversity measures from each population)....
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This note was uploaded on 11/06/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.
- Fall '10