What blood type will a child have if one parent has type O and the other has type B?
Oct 13, 2023
Source: Cainiu Health
Dr. Li Yanchen
Introduction
Under normal circumstances, children born to parents with blood type O and blood type B will usually have either blood type B or O. The ABO blood group system is classified based on the nature of ABO antigens present on the red blood cell membrane. The synthesis of ABO blood group antigens is genetically controlled. The ABO blood group genes are located on chromosome 9 and consist of a pair of alleles, in which the A and B genes are dominant, while the O gene is recessive.
Under normal circumstances, children born to parents with type O and type B blood will usually have either type B or type O blood. The detailed explanation is as follows:
The ABO blood group system is classified based on the nature of ABO antigens present on the surface of red blood cells. The synthesis of these antigens is genetically controlled. The ABO blood type gene is located on chromosome 9 and consists of a pair of alleles. The A and B genes are dominant, while the O gene is recessive. Therefore, individuals with genotypes AO or AA express blood type A; those with BO or BB express blood type B; AB genotype results in blood type AB; and only the OO genotype results in blood type O. In other words, individuals with type B blood can have either the BB or BO genotype, whereas individuals with type O blood must have the OO genotype, since the O gene is recessive. As a result, when one parent has type O blood (OO) and the other has type B blood (BB or BO), their children can only inherit either type B or type O blood.
In summary, children born to an O-type and a B-type parent typically have one of only two possible blood types: B or O. Blood type analysis can be used to assess亲子 relationships or for medical purposes such as blood transfusions and hematopoietic stem cell transplantation.
