Assuming independent assortment, the ratio of progeny with the genotypes AaBb : Aabb : aaBb : aabb from a dihybrid cross AabB X AaBb will respectively be:

1. 4 : 3 : 2 : 1 2. 4 : 4 : 2 : 1
3. 4 : 2 : 2 : 1 4. 4 : 2 : 1 : 1
Subtopic:  Dihybrid Cross Analysis |
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