Question

What are the possible blood groups likely to be inherited by children born to a group A mother and a group B father? Explain your reasoning.

Answer 1

If the parents are homozygous like mother [Group A] $\left(I_A{I}_A\right)$ and father [Group B] $\left(I_B{I}_B\right)$, the gametes produced from will be $I_A$ and $I_B$ then the offspring formed will be $I_A{I}_B$ [Group AB]

If the parents are heterozygous like mother [Group A] $\left(I_A{I}_O\right)$ and father [Group B] $\left(I_B{I}_O\right)$, the gametes produced from will be $I_A$, $I_B$ and $I_O$,

Parents	Group A mother	Group B father
Genotype	$I_A{I}_O$	$I_B{I}_O$
Gametes	$\left(I_A\right)\left(I_O\right)$	$\left(I_B\right)\left(I_O\right)$
Offsprings	$\underset{\text{Group A}}{I_A,I_O}\underset{\text{Group B}}{I_B,I_O}\underset{\text{Group AB}}{I_A,I_B}\underset{\text{Group O}}{I_O,I_O}$