jingles3
In human beings the ability to taste phenylthiourea depends upon the presence of a dominant gene.
(a) Construct diagrams showing
(b) (i) the genotype and phenotype of the parental generation and the F1 generation, and the gametes of the cross between a homozygous taster and a homozygous non-taster; (5marks)
(c) (ii) the genotype and phenotype of the progeny of a cross between two individuals of the F1 type in (i)
(a) Construct diagrams showing
(b) (i) the genotype and phenotype of the parental generation and the F1 generation, and the gametes of the cross between a homozygous taster and a homozygous non-taster; (5marks)
(c) (ii) the genotype and phenotype of the progeny of a cross between two individuals of the F1 type in (i)