diversity.The results of both calculations are given inTable 19-6. Note that the haplotype diversity is alwaysgreater than the average heterozygosity of the separateloci, because an individual is a haplotypic heterozygoteif either of its genes is heterozygous.Random matingThe Hardy-Weinberg equilibrium was derived on the assumption of “random mating,” but we must carefullydistinguish two meanings of that process. First, we maymean that individuals do not choose their mates on thebasis of some heritable character. Human beings are ran-domly mating with respect to blood groups in this ±rstsense, because they generally do not know the bloodtype of their prospective mates, and even if they did, it isunlikely that they would use blood type as a criterionfor choice. In this ±rst sense, random mating will occurwith respect to genes that have no effect on appearance,behavior, smell, or other characteristics that directly in-²uence mate choice.
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This note was uploaded on 01/10/2011 for the course BIOL BIOL taught by Professor Johnson during the Spring '08 term at Aberystwyth University.