F1:1/4AA,2/4Aa.1/4aa----------1/3AA,2/3Aa
F2:1/3+1/6=3/6AA,2/6Aa,1/6aa-------3/5AA.2/5Aa
F3:3/5+1/10=7/10AA,2/10Aa.1/10aa--7/9AA,2/9Aa
.
Fn:(2^n-1)/(2^n+2)AA,2/(2^n+2)Aa,1/(2^n+2)aa
由于只需计算Fn,不考虑淘汰选Fn+1,故此杂合体比例是2/(2^n+2)
F1:1/4AA,2/4Aa.1/4aa----------1/3AA,2/3Aa
F2:1/3+1/6=3/6AA,2/6Aa,1/6aa-------3/5AA.2/5Aa
F3:3/5+1/10=7/10AA,2/10Aa.1/10aa--7/9AA,2/9Aa
.
Fn:(2^n-1)/(2^n+2)AA,2/(2^n+2)Aa,1/(2^n+2)aa
由于只需计算Fn,不考虑淘汰选Fn+1,故此杂合体比例是2/(2^n+2)