A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People ...

1. A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People who are homozygous for the recessive allele, t, are unable to taste PTC. In a genetics class of {y} students, and 3 cannot taste the PTC. How many students would you expect to be homozygous dominant for the tasting gene?


2. A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People who are homozygous for the recessive allele, t, are unable to taste PTC. In a genetics class of {y} students, and {x} cannot taste the PTC. You have already calculated the heterozygous and homozygous dominant frequencies. How could you check your answers for for the heterozygous and homozygous dominant frequencies are correct?


I'm stuck! How do you do these?