Question

A true breeding pea plant homozygous for axial violet flowers is crossed with another pea plant with terminal white flowers (aavv). 

(a) What would be the phenotype and genotype of F₁ and F₂ generations? 

(b) Give the phenotypic ratio of F₂ generation. 

(c) List the Mendel’s generalisations that can be derived from the above cross.

Answer 1

(a) Phenotype of F₁ generation: All axial, violet flowers

Genotype of F₁ generation: AaVv 

(b) Phenotypic ratio of F₂ generation:

(c) Law of independent assortment: This law states that the different factors or allelomorphic pairs in gametes and zygotes assort themselves and segregate independently of one another.