Homozygous B means that the female posses \(I ^{B} I^{B}\)
Heterozygous A means that the male posses \(I^{A} I^{O}\) (A and B are both dominant while O is recessive to the two so if it is heterozygous A or B then O must be the other allele.
View the Punnett Cross below:
Thus based on the cross, there is a 50% chance that the offspring would be blood type AB and 50% chance the offspring would be blood type B.
Note: the blood type is the superscript on the base I.
