Which genotypes can taste PTC?

Question

A.tt

B.Only TT

C.TT and Tt

Answer 1

The ability to taste PTC (phenylthiocarbamide) is determined by a dominant allele. The genotypes that can taste PTC are:

C. TT and Tt

Individuals with either the homozygous dominant genotype (TT) or the heterozygous genotype (Tt) can taste PTC. Only those with the homozygous recessive genotype (tt) cannot taste it.