Question

If a father is blood type A, and a mother is blood type B,what are all of the possible combinations that the offspring could be?

Answer 1

A, B, AB, and O are the basics.

While:
AA, AB, AO, BB, BO, and OO are possible outcomes.

Answer 2

AA
AB
A0
BB
B0
00

^all the possible outcomes

A
AB
B
^basics