Question

In a dihybrid cross AABB x aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of ______.

Options

• 1 : 1 : 1 : 1

• 9 : 3 : 3 : 1

• 1 : 2 : 2 : 1

• 1 : 2 : 2 : 4

Answer 1

In a dihybrid cross AABB x aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of 1 : 2 : 2 : 4.