Question

In a cross between AABB × aabb, the ratio of F₂ genotypes between AABB, AaBB, Aabb and aabb would be

Answer 1

In a cross between AABB x aabb, the ratio of F, genotypes between AABB, AaBB, Aabb and aabb would be 1 : 2 : 2 : 1. Genotype is the genetic make up of an individual. This may refer to just one trait or it may refer to the combination of many or all of the traits of the individuals.

Answer 2

AABB : AaBB : Aabb : aabb 

 2ⁿ where n= number of heterozygotes 

2⁰ : 2¹ : 2¹ : 2⁰

1 : 2 : 2 : 1 are the ratio of above genotypes.