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 pair in gametes and zygotes assort themselves and segregate independently of one another.