P: Aabb x AABb
Gp Ab,ab AB,Ab
F1: 1AABb:1AAbb:1AaBb:1Aabb
kiểu gen:;2A_B_:2A_bb
P:aaBB x aabb
Gp aB ab
F1: aaBb
P: AABb x AaBb
Gp AB,Ab AB,Ab,aB,ab
F1: 1AABB:2 AABb:1AaBB:2AaBb:1AAbb:1Aabb
kiểu gen: 6A_B_:2A_bb
P: AaBb x AAbb
Gp. AB,Ab,aB,ab. Ab
F1: 1AABb:1AAbb:1AaBb:1Aabb
kiểu gen: 2A_B_:2A_bb