In a maternity ward four babies become accidentally mixed up

In a maternity ward, four babies become accidentally mixed up. The ABO types of the four babies are known to be O, A, B and AB. The ABO types of the four sets of parents are determined. Indicate which baby belongs to each set of parents. AB times O A times O A times AB O times O

Solution

A) AB * O : Child might be A or B

B) A* O : Child might be A or O

C) A* AB: Child might be A ,B or AB.

D) O*O : Child will be O.

Explanation: The above results are through genotype match between mother and father having the particular blood groups.

For example: A blood means AA or AO , O means OO, B means BB or BO ,AB means AB.O allele is masked by presence of A and B allele and expresses in presence of 2 O alleles.A punnet square cross will depict the above results.