Question

A child with mother of A blood group and father of AB blood group, will not have the following blood group :

• A. B
• B. A
• C. AB
• D. 0

Answer 1

Answer: (D)

In human beings four type of blood groups are present according to Landsteiner and Decastello. These are blood group A, B, AB and O. The blood group A has genotype $I^a$ or $I^a{I}^o$ Blood group B has genotype $I^b{I}^b$ or $I^b{I}^o$ Blood group AB has genotype $I^a{I}^b$ Blood group O has genotype $I^o{I}^o$
Hence, the child will not have 0 blood group.