Multiple choice If AAbb * aaBB, then phenotypic ratio of its progeny would be 9 : 3 : 3 : 1 1 : 2 : 1 1 : 1 : 1 : 1 4 : 1 - Reveal answer Fill a bubble to check yourself A Correct answer Explanation According to Mendel's law of independent assortment, this cross shows the progeny in the phenotypic ratio of 9 : 3 : 3 : 1. This is the law related to dihybrid cross.