Suppose there is a mountain village with 1,000 people and 640 people in the village can taste bitter PTC (phenylthiocarbamide found in some foods). Tasting bitter PTC is a dominant trait, so those that can taste it must have at least one copy of the dominant PTC taster allele (T). The recessive allele can be called t. If this population conforms to Hardy-Weinberg equilibrium for this gene, answer the following questions.


a) What is the genotypic frequency of individuals that cannot taste bitter PTC?

b) What is the allelic frequency of the recessive allele?

c) What is the frequency of heterozygous individuals for this trait?