1.

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

Answer»

The parents of the child will be heterozygous for their blood groups. Therefore, his father with blood group A must-have genotype (IA Io) and mother with blood group B must have genotype (IB Io).



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