Question

Susan, a mother with type b blood, has a child with type o blood. She claims that craig, who has type a blood, is the father. He claims that he cannot possibly be the father. Further blood tests ordered by the judge reveal that craig is aa. The judge rules that

Answer 1

it is not compulsory that the child's blood group matches with mother or father.

Answer 2

Susan,a mother with type B blood,has a child with type O blood .She claims that Craig,who has type A blood,is the father.He claims that he cannot possibly be the father.Further blood tests ordered by the judge reveal that Craig is AA .The judge rules that The Craig possibly cannot be the father of child of Susan.

• It is because a child having O blood group will always be of parent having heterozygous blood allele.
• Therefore the possibly blood group of father of a child having O blood group should be Iₐi.