People are divided into four main blood types: A, B, AB and O, depending on which antigens they carry. Every individual inherits one antigen from each of their parent. A and B antigens are called the 'dominant' ones.
This means if a person has one B and one O antigen, the B will be dominant over the O and their blood reacts as the type B.
This means if a person has one B and one O antigen, the B will be dominant over the O and their blood reacts as the type B.
