Question

A child has blood group 0. If the father has blood group A and mother has blood group B, work out the genotypes of the parents and the possible genotypes of the other offsprings.

Answer 1

The child with blood group 'O' will be homozygous recessive alleles. Therefore, both the parents should be heterozygous, i.e., the genotype of the father will be $I^{A}i$and of mother will be $I^{B}i$.

Blood group : AB

The possible blood groups of other offspring will be AB, A, B and O.