How to classify people s blood types Can you be specific, thank you

In daily life, ABO blood type is the first thing that most people think of, and it is also recognized and used by the World Health Organization to promote it to the world. Broadly speaking, there are four main types of blood types: A, B, AB, and O. To be precise, the two blood types A and AB can be subdivided into A1 and A2, as well as A1B and A2B.

These six blood types are suitable for most members of the population with different blood types. With the deepening of research, in addition to ABO blood group, the most widely used in life and medical treatment are RH blood group, HLA blood group, etc.

There are 4 types of human blood types: type A, type B, type O, and type A B.

Blood groups A genetic trait that manifests itself in the form of blood antigens. In a narrow sense, blood group refers specifically to the difference in red blood cell antigens between individuals; However, it is now known that in addition to red blood cells, there are antigenic differences between individuals in white blood cells, platelets, and even certain plasma proteins. Therefore, blood grouping in a broad sense should include the differences in antigens of each component of the blood between individuals.

Blood group has a wide range of practical value in anthropology, genetics, forensic science, clinical medicine and other disciplines, so it has important theoretical and practical significance.

Blood Group System The red blood cell blood group was discovered in 1900 by K. Landsteiner in Austria. He cross-mixed each person's red blood cells with someone else's serum, and found that the existing blood had a clotting reaction with each other, while the other did not. He believed that in the case of agglutination, there is an antigen on the red blood cells and an antibody in the serum.

If the antigen and the antibody have a specific relationship, agglutination occurs. If there is an antigen A on red blood cells and an antibody on serum, agglutination will occur. If red blood cells lack an antigen or a corresponding antibody in the serum, agglutination does not occur.

Based on this principle, he discovered the ABO blood group of the person. Later, he injected red blood cells from different people into rabbits, and produced three kinds of immune antibodies in rabbit serum, called M antibodies, N antibodies and P antibodies. With these three antibodies, three new antigens on red blood cells can be identified.

These new antigens are independent of ABO blood group and are inherited independently of each other's blood group system. And m, n, and p are not one system. The blood group genes that control different blood group systems are on different chromosomes, and even on one chromosome, the gene loci of the two systems are very far apart, not linked, and therefore inherited independently.

A, B, O, AB blood group It is best to choose the same type of transfusion, the antibodies on the red blood cell membrane of people with different blood types are different, and indiscriminate blood transfusion will produce antigen and antibody reactions, resulting in red blood cell agglutination, which may be life-threatening. There is also a rare group of people with Rh-negative blood, and people with this blood type can be considered only A, B, and O blood types without considering Rh blood type for the first blood transfusion, but must be considered for the second time and later.

Blood type is not absolutely visible from a person's personality and temperament, and the social relationship in which he has lived since childhood will also have an impact on his personality and temperament, and the most accurate way is to go to the hospital for a blood test.

This kind of serious question cannot be guessed, because there may be fatalities at critical times, you can go to the hospital for a check-up, or you can go to donate blood once, and blood donation is still beneficial to individuals to a certain extent!

If you go to the hospital to check it, you will know that it is about ten yuan, and it is cheaper for small hospitals. There is a relationship between blood type and personality.