A couple with a newborn baby is troubled that the child does not resemble either of them. Suspecting that a mix-up occurred at the hospital, they check the blood type of the infant. It is type 0. Because the father is type A and the mother type B, they conclude that a mix-up has definitely occurred. Are they correct? Give reason for your answer

Question

Philoid · Accepted Answer

No, the parents are not correct. The father is type A and the Mother is type B; the possible genotypes that are inherited by the baby are I^A I^B, I^A I^O, I^B I^O and I^OI^O. This means that any of the blood type AB, A, B, and O can be inherited by the child. If the child inherits any of the one blood type, which is occurring here in this case that the child is inheriting type O blood group, no error has occurred.