Paternity testing is done involving a woman with type AB blood who has accused a man with type B blood of fathering her child who has tested AB. What can be determined in this case?
A)The male is definitely NOT the father of the child.
B)The male could have fathered the child.
C)The male definitely IS the father of the child.
D)The child cannot belong to this mother.

Question

Quizplus · Accepted Answer

Given the mother's blood type is AB and the child's blood type is also AB, the father must contribute either an A or a B allele. Since the accused man has type B blood, he can contribute a B allele, making it possible for him to be the father of the child.

Paternity Testing Is Done Involving a Woman with Type AB