What are Jojo's blood type genotypes?

To determine Jojo's blood type genotypes, it's essential to understand how blood types are inherited. Human blood types are determined by the ABO blood group system, which includes four main types: A, B, AB, and O, based on the presence or absence of specific antigens on the surface of red blood cells. The alleles involved are A, B, and O, with A and B being co-dominant and O being recessive.

The genotypes that correspond to the blood types are as follows:

• Type A can have the genotypes AA or AO.

• Type B can have the genotypes BB or BO.

• Type AB has the genotype AB.

• Type O has the genotype OO.

The option that indicates two "AA" genotypes suggests that Jojo has two alleles for blood type A, giving her a blood type of A. This means that she can pass on either an A or an O allele to her offspring, inheriting blood type characteristics solely from the A allele.

Choosing this option also reflects the compatibility of the potential blood types that could arise from varying combinations of parental alleles. If both of Jojo's alleles are A, it guarantees her phenotype is A, which is consistent with