1. Within a population of butterflies, the color brown (B) isdominant over the color white, and 40% of all butterflies arewhite.

a) Calculate the percentage of butterflies in the population thatare heterozygous b
b) Calculate the frequency of homozygous dominant individuals

2. A very large population of randomly mating laboratory micecontains 35% white mice. White coloring is caused by the doublerecessive genotype "aa". Calculate all allele and genotypefrequencies for this population.

3. The ability to taste a bitter chemical known as PTC is due tothe single dominant allele "T". You sampled 215 individuals anddetermined that 150 could detect the bitter taste of PTC and 65could not. Calculate all the potential frequencies.