Alleles for the A and B blood cell antigens are codominant. The condition where no antigens are present on the blood cells (type O blood) is a recessive trait. A man with type AB blood marries a woman who has type O blood. They have 3 children. What would be the genotypes of the parents? What would be the possible genotypes of their children? What are the chances that they would have a child with type B blood? What are the chances that one of the children will have the same blood type as their father?