Answer:
When two heterozygous short haired rabbits are crossed, the short hair being dominant and the long hair recessive, the phenotypes in the offspring will be 75% short hair and 25% long hair, with a short hair:long hair ratio of 3:1.
Explanation:
The crossing of two hybrid individuals for a trait has the probability of producing offspring that exhibit the dominant trait at 75% and the recessive trait at 25%, with the ratio of the dominant trait to the recessive trait being 3:1.
Considering the hair length trait, in rabbits the short hair (L) is the dominant trait and the long hair (L) is recessive, two heterozygous hybrid individuals Ll are crossed:
Genotype of the parents:
Ll X Ll
Punnett Square
Alleles     L    l
L Â Â Â Â Â Â Â Â LL Â Â Ll
l          Ll    ll
Where the offspring have a genotype:
Ll 50%
LL 25%
ll 25%
With a ratio Ll:LL:ll of 3:1:1.
Phenotype:
Short hair 75%.
Long hair 25%.
Phenotypic ratio short hair: 3:1 long hair.
In the crossing of two heterozygous short-haired rabbits, taking into account the dominance of the short hair, Â phenotypes in the offspring will be 75% short hair and 25% long hair, with a short hair:long hair ratio of 3:1
