There are four major blood groups determined by the presence or absence of two antigens, A and B, on the surface of red blood cells. In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present (+) or absent (–), creating the 8 most common blood types ( A+, A- , B+, B- , O+, O- , AB+, AB- ).

2023年3月5日 · Every person has a specific blood type. Learn what determines your blood type and why it’s important to know what it is.

The ABO blood type is controlled by a single gene (the ABO gene) with three types of alleles inferred from classical genetics: i, I A, and I B. The I designation stands for isoagglutinogen , another term for antigen . [ 31 ]

The ABO blood group antigens are encoded by one genetic locus, the ABO locus, which has three alternative (allelic) forms—A, B, and O. A child receives one of the three alleles from each parent, giving rise to six possible genotypes and four possible blood types (phenotypes).

ABO Rh test (blood group typing) is a crucial laboratory procedure that determines an individual’s ABO and RhD blood group based on the presence or absence of specific antigens on the surface of their red blood cells.

2024年12月23日 · Several genes with varying inheritance patterns are involved in determining your blood type. The most significant gene is the ABO gene which determines your ABO blood type. Like...

2024年9月9日 · While there are many different types of antigens on our red blood cells and throughout our body, there are 2 main blood antigen groups that determine our blood type: ABO and Rh. ABO blood group. The A and B antigens, and their presence on our red blood cells determines if our blood type is O (lacks both A and B antigens), A (has the A antigen ...

2024年3月31日 · You will be told which ABO blood type you have. It will be one of these: Type A blood; Type B blood; Type AB blood; Type O blood; You will also be told whether you have Rh-positive blood or Rh-negative blood. Based on your results, your health care providers can determine which type of blood you can safely receive:

2025年1月11日 · ABO blood group system, the classification of human blood based on the inherited properties of red blood cells (erythrocytes) as determined by the presence or absence of the antigens A and B, which are carried on the surface of the red cells. Persons may thus have type A, type B, type O, or type AB blood.

2012年10月1日 · Molecular genetic testing can be used to determine an individual’s ABO genotype (e.g., genotype AO or AA). This may be useful in the research setting, for example, to investigate the link between ABO blood groups and particular diseases, and also in …