Aa x Aa -> 1AA: 2Aa: 1aa
Bb x bb -> 1Bb : 1bb
DD x Dd -> 1DD : 1Dd
Ee x Ee -> 1EE : 2Ee : 1ee
a) A_BbD_ee = 3/4 x 1/2 x 1 x 1/4 = 3/32
A_bbD_E_ = 3/4 x 1/2 x 1 x 3/4 = 9/32
aaBbD_E_ = 1/4 x 1/2 x 1 x 3/4 = 3/32
tổng 15/32
b) F1 3tt lặn : 1 tt trội
aabbD_ee : 1/4 x 1/2 x 1 x 1/4 = 1/32
c) F1 có 2 tt trội, 2 tt lặn
A_bbD_ee= 3/4 x 1/2 x 1/4 = 3/32
aaBbD_ee: 1/4 x 1/2 x 1/4 = 1/32
aabbD_E_: 1/4 x 1/2 x 3/4 = 3/32
tổng 7/32