Answer:
Expert Verified Answer
Step-by-step explanation:
The probability that a mother with type AB blood (homozygous dominant, AB) will have a child with type O (homozygous recessive, oo) is 50%.
A mother with type AB blood (AB) is a carrier of both the A and B alleles. When this mother has a child, she can pass along either the A allele or the B allele to her offspring.
If the father of the child is also a carrier of the o allele (e.g. type O, type Ao, or type BO), then there is a 50% chance that the offspring will inherit the o allele and will have the O blood type. This is because the o allele is recessive, meaning that it can only be expressed if two copies of the allele are present (oo). Since the father has at least one copy of the o allele, the offspring has a 50% chance of inheriting the o allele and having the O blood type.