Expert answer:
Your child's blood type depends on the blood type of the couple. There are well-defined results for all possible combinations:
- O with O = child can be ONLY of type O. It will never be A, B or AB.
- O with A = child can be of types O and A, never B or AB.
- A with A = child can be type O and A, never B or AB.
- O with B = child can be type O and B, never A or AB.
- B with B = child can be type O and B, never A or AB.
- A with B = child can be of any blood group (O, A, B or AB).
- The with AB = child can be A or B, never O or AB.
- A with AB = child can be A, B or AB, never O.
- B with AB = child can be A, B or AB, never O.
- AB with AB = child can be A, B or AB, never O.
