# Evolutionary Genetics 03

 Selection that constantly eliminates deleterious alleles from the population is called ________ selection. purifying A regime that causes an increase in the frequency of a beneficial allele and its eventual fixation is termed ________ selection. directional The replacement of an allele by another due to selection is known as a _______ ________. selective sweep What is purifying selection? Selection that constantly eliminates deleterious alleles from the population. What is directional selection? A regime that causes an increase in the frequency of a beneficial allele and its eventual fixation. What is a selective sweep? The replacement of an allele by another due to selection. What is delta p? The rate of evolution When the heterozygote has the highest fitness (wAa = 1.0), the allele frequencies will __________. converge towards a stable equilibrium, regardless of the inital p value. What is the equation for figuring out what the stable equilibrium will be for p and q when wAa = 1.0? p(hat) = Saa/SAA + Saaq(hat) = SAA/SAA + Saa How do you calculate S? w = 1 - SS = 1 - w If the fitness of wAA = wAa and now waa, then you know you've got _____________. complete dominance If wAA > wAa > waa or if wAA < wAa < waa, then you know you've got _____________. incomplete dominance If the incomplete dominance is perfectly additive, then if wAA = 1.0 and waa = 0.5 then wAa will equal _________. the average of the two0.75 If wAA < wAa > waa then you know you've got ___________. heterozygote advantage If you sample a population and you get 10:12:24, wAA = 1.0, wAa = 1.0, and waa = 0.8, then how do you get average fitness? (10*1+12*1+24*.8)/N AuthorMiskozi ID79495 Card SetEvolutionary Genetics 03 Descriptionevolution Updated2011-04-14T02:23:18Z Show Answers