For the blood group A, there will be two type of genotype$- I^{A}I^{A},I^{A}I^{D}$. For the blood group AB there will be only one genotype$- I^{A}I^{B}$. Case I When parent blood group $I^{A}I^{O}$ and $I^{A}I^{B}$ [image:5d_image11.emf] Case II When parent blood group are $I^{A}I^{A}$ and $I^{A}I^{D}$