Question

Cross between AABb and aaBb yield AaBB: AaBb: Aabb: aabb offspring in the ratio of

Answer 1

1:1

• A parent with genotype AaBB has two types of gametes; AB and aB and a parent with genotype aaBB has only one type of gamete, which is aB. When a cross happens between these parents, the genotype of offspring will be AaBB and aaBB in the ratio of 1:1.

Answer 2

Answer:

• Offsprings are AaBB(1), AaBb(2) , Aabb (1),

• Since aabb type of offspring is not produced then ;

The ratio of the offspring will be:

1:2:1:0

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