Question

find blood group of children if blood group of father is O and mother is AB

Answer 1

THE POSSIBLE BLOOD GROUP OF CHILDREN ARE A and B

SEE Father has blood group O that means that he has  no antigens

but in mother both antigens A and B are present.

        0    0                                        A       B

   I    I               X        I     I

SO OFFSPRINGS WILL HAVE GENOTYPE          A       O           B      O

                                                 I      I        I     I

HENCE children will have blood group A and B