Final answer:
An individual with blood type O can be the child of parents with blood types A and B if both parents are heterozygous, carrying one dominant and one recessive allele.
Step-by-step explanation:
Yes, an individual with blood type O (genotype ii) can be the legitimate child of parents where one parent has blood type A and the other has blood type B. This is possible if each parent possesses one dominant allele (either IA or IB) and one recessive allele (i), making them both heterozygous (IAi and IBi, respectively). In such a case, both parents can contribute the recessive allele (i) to their child, resulting in a genotype of ii (blood type O).The ABO blood types exhibit both multiple alleles (IA, IB, and i) and codominance (for IA and IB alleles). In the scenario where one parent has genotype IAi (blood type A) and the other has genotype IBi (blood type B), they can produce offspring with any of the four blood types: A (IAi or IAIA), B (IBi or IBIB), AB (IAIB), or O (ii).Yes, it is possible for an individual with blood type O (genotype).
To be a legitimate child of parents in which one parent has blood type A and the other parent has blood type B.The ABO blood type system is determined by the presence or absence of antigens on the surface of red blood cells. Blood type O individuals (ii) do not have either the A or B antigens. Blood types A and B each have one dominant and one recessive allele. Therefore, a parent with blood type A can have either the genotype IAIA or IAi, and a parent with blood type B can have either the genotype IBIB or IBi.When a parent with blood type A (IAi or IAIA) and a parent with blood type B (IBi or IBIB) have a child, there is a possibility for the child to inherit the recessive O allele from both parents, resulting in the blood type O (ii) genotype.