question_answer

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the \[{{F}_{1}}\] plants were selfed the resulting genotypes were in the ratio

A)  1 : 2 : 1 :: Tall homozygous : Tall heterozygous : Dwarf

B) 1 : 2 : 1 :: Tall heterozygous : Tall homozygous : Dwarf

C)  3 : 1 :: Tall : Dwarf

D)  3 : 1 :: Dwarf : Tall

Correct Answer: A

Solution :

Phenotypic ratio    : tall : dwarf Genotypic ratio                    : TT : Tt : tt                                 1 : 2 : 1