A member asked:

What are the chances of an o+ father and an a+ mother producing an a-/o- (rh-) child? is this possible?

A doctor has provided 1 answer
Dr. Katharine Cox answered

Specializes in Pediatric Emergency Medicine

Blood Group: Only if the mother carries the gene for the blood group O and both parents carry the gene for the blood group Rh negative. Ask your doctor based on your blood groups. Knowing your family background will help. All the best.

Answered 11/12/2014

3.6k views

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If father's blood is a and mother is o, can a child be b?

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