In a population of Gouldian Finches (Erythrura gouldiae, pictured at right), 1300 have a white breast coloration and 700 have purple breast coloration. The population is at Hardy-Weinberg equilibrium and breast color is determined by a single mutation at one locus. a) How could you determine which color is the dominant trait? b) What is the frequency of the recessive allele if white is the dominant trait? c) What is the frequency of the homozygous dominant genotype if purple is the dominant trait?