Question

The ability to taste the compound phenylthiocarbamide is dominant. If both parents are heterozygous for the taster allele (T/t), what is the probability of having a family of three children consisting of two tasters and one nontaster

Answer 1

3:1

Step-by-step explanation:

Parents : Tt x Tt

↓ ↓

Gametes : T, t T, t

Progeny : TT, Tt, Tt, tt

Phenotype of F1 generation = 3:1

Genotype = 1:2:1

Hence, probability of having tasters and non-taster children is 3:1 .