A mother with blood type A has a child with blood type AB. Give all possible blood types for the father of this child.
A) O
B) B, AB
C) A, AB
D) A, B, O
E) A, B, AB, O

Question

Quizplus · Accepted Answer

The child has blood type AB, which means they inherited an A allele from the mother and a B allele from the father. Therefore, the father must have a B allele, so his blood type could be B or AB.

A Mother with Blood Type a Has a Child with Blood