Use the knowledge of antibody antigens to explain the common types of blood types, blood transfusion

Are you asking about just ABO blood type, or all of them?

Blood type Leglutogen (antigen) Lectin (antibody) Blood transfusion is possible.

Type A A Anti-B A, O

Type B B Anti-A B, O

AB type A+B has no A, B, AB, O

Type O: No anti-A + anti-B O

Parents are AA The child may have blood types A, O

Parents are AB Possible blood type of the child AB, A, B, O Parents are A, AB Possible blood type of the child A, AB, B Parents are AO The child may have blood type A, O

The parent is BA The child's possible blood type AB, A, B, O, and the parent is BB The child's possible blood type B, O

Parents are B, AB Possible blood type A, B, AB The parent is Bo The child's possible blood type B and O

Parents are AB, A Possible blood type of the child A, B, AB Parents are AB, B Possible blood type of the child A, B, AB Parents are AB, AB Possible blood type of the child A, B, AB Parents are AB, o The child may have blood types A, B

Parents are OA The child's possible blood types A, O

Parents are ob of the child's possible blood type B, O

Parents are O, AB The child's possible blood type A, B

Parents are oo the child's possible blood type O

Antigens (i.e., ABOs) are present on the surface of blood cells, and when different blood types are transfused into the body, antibodies "invade" the body. The body produces antibodies to "defend" it, which is called blood clotting.

ABO blood group is controlled by genes and is a complex allele, A, B, I. When AA, AI is type A, BB, BI is type B, II is type O, you can get the possible blood types of parents and children through the law of separation and free combination.

The problem of blood type is too complex, and in combination with the above, it should also be said that the problem of rh blood group and the problem of Mendry blood group. I can't remember this, it seems to mean that no matter what the parents are, the child is o) It is recommended to take a look at Liu Zudong's genetics The full name is this red and black book.

The blood type A contains agglutinin A, anti-B lectin, which is incorrect, and the blood that can make the red blood cells of blood group A agglutinate may be blood type B and type AB, and the red blood cell membrane of Rh-negative blood contains agglutinin D, and the serum contains anti-D lectin, which is incorrect

The presence of anti-D lectins in Rh-negative blood is the result of the action of D-lectinogen on the cell membrane in the blood of the donor, correctly.

Therefore, C

Blood groups are named after the antigens contained in red blood cells.

Human blood with blood type A is a antigen and an anti-B antibody.

The red blood cells of people with blood type B are B antigen and anti-A antibodies.

Therefore, type A blood is transfused into type B blood, and the antigens and antibodies in the agglutination reaction are mainly A antigens, wild spring substances and anti-A antibodies.

Correct answer: c

Analysis: In the blood group system, anti-A and anti-B can be a mixture of IgM and IgG, or even IgM, IgG, and IgA, but mainly IgM

A. If the mother's genotype is AB, the mother's red blood cells will agglutinate with the serum of the son with type O blood, and A is wrong;

B. The criterion for systematic classification of ABO blood group is the proagglutinal species in red blood cells, and B is wrong;

C. The blood group inheritance of the human ABO blood group system has three complex alleles: IA, IB, and I, and C is correct;

d. The basic principle of blood transfusion is to transfuse the same type of blood as the principle