How many offspring would be predicted to have a Type AB phenotype from the provided Punnett square?

To determine how many offspring would exhibit a Type AB phenotype from the provided Punnett square, it is important to understand the genetics of blood types, specifically the ABO blood group system. Blood type phenotypes are determined by the presence of specific alleles: A, B, and O, where A and B are both codominant and O is recessive.

When looking at a cross between two individuals who have the ability to produce A and B alleles, such as one individual with genotype IAIB (Type AB) and another with genotype ii (Type O), the offspring's genotypes could be IAi (Type A) and IBi (Type B), resulting in no direct generation of the Type AB offspring.

However, if the Punnett square established different parental genotypes, such as IAIA (Type A) and IBIB (Type B), the offspring could indeed be IAIB, thus making them of Type AB. In scenarios where one parent has the IA allele and the other has the IB allele combined with the right compatible combinations within these genetic crosses, they might produce three possible combinations—two types of blood types that would yield individuals with either A, B, or AB phenotype.

In this case, if the Punnett