Answer:
Genotypic results: 1 (TT):2 (Tt) :1 (tt)
Homzygous Dominant: 1/4
Heterozygous: 1/2
Homzygous Recessive: 1/4
Phenotypc results: 3 tall: 1 short
Tall: 3/4
Short: 1/4
Explanation:
This question involves a gene coding for height. The alelle for tallness (T) is dominant over the allele for shortness (t). According to this question, a cross between two Brassic rap parent plants known to be heterozygos tall (Tt) is performed.
Each parent will produce gametes T and t. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
TT (1), Tt (2), and tt (1)
Based on this result, the following results are obtained:
Genotypic results: 1 (TT):2 (Tt) :1 (tt)
Homzygous Dominant: 1/4
Heterozygous: 1/2
Homzygous Recessive: 1/4
Phenotypc results: 3 tall: 1 short
Tall: 3/4
Short: 1/4
