27+ Blood Type Ab Homozygous Background. In human blood transfusions it is the most important of the 38 different. The possible human phenotypes for blood group are type a, type b, type ab, and type o.
Homozygous means that the father carries only one type of allele (o,o) the father's blood type could be b or o. A, b, ab, and o. This video has a handout here.
B blood type x b blood type genotype:
People with ab blood group have both a and b antigens on their red blood cells and don't have antibodies against a or b antigens. B blood type x b blood type genotype: Blood type b is ibib or ibi and blood type o is ii. Abo blood group system, classification of human blood as determined by the presence or absence of a and b antigens on red blood cells.