Short hair L in rabbits is dominant over long hair I The fol

Short hair (L) in rabbits is dominant over long hair (I). The following crosses are carried out producing the progeny shown. Give all possible genotypes of the parents in each cross and explain your reasoning.

Solution

1. Short (Ll) x Short (Ll)

Reason: The phenotypic ratio of the F1 is 3:1

Genotype of F1: LL - 1; Ll - 2; ll-1

2. Short (LL) x Short (LL)

Reason: All children in F1 are Short

Genotype of F1: All LL

3. Short (LL) x Long (ll)

Reason: All children in F1 are Short

Genotype of F1: All Ll

4. Short (Ll) x Long (ll)

Reason: children in F1 are both Short and long

Genotype of F1: Ll -1 and ll - 1