Question

Give the expected phenotypic ratio for AaBb x Aabb, A is dominant to a and B is dominant to b.

Answer 1

I keep getting 6:2:6:2.

Answer 2

That's what I put in for the punnett square.

Answer 3

What I get are A_B_: 6, aaB_+ 2
A_bb: 6 and aabb: 2.

Answer 4

But that's not possible. The only possible ratios are 1:2:1, 3:1, 1:1 and 9:3:3:1.