Question

If a parent with blood type B (BB) has a child with blood type O, what is the genotype of the other parent?

Answer 1

Blood type A (genotype AO) or blood type O (genotype OO).

Step-by-step explanation:

Okay, so if one of the parent's has blood type B (genotype BB) and the child has blood type O, it means that the B allele is not present in the child's genotype. Which would mean that the other parent would likely have either Blood Type A or Blood type O.