Question

write a note on A,B,O blood group system in human beings.

Answer 1

The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes.[1] In human blood transfusions it is the most important of the 35 different blood type (or group) classification systems currently recognized.[2] A very rare (in modern medicine) mismatch in this, or any other serotype, can cause a serious, potentially fatal, adverse reaction after a transfusion, or a contra-indicated immune response to an organ transplant.[3] The associated anti-A and anti-B antibodies are usually IgM antibodies, which are produced in the first years of life by sensitization to environmental substances, such as food, bacteria, and viruses. ABO blood types are also present in some other animals, for example rodents and apes, such as chimpanzees, bonobos, and gorillas.

Answer 2

The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes.[1] In human blood transfusions it is the most important of the 35 different blood type (or group) classification systems currently recognized.[2] A very rare (in modern medicine) mismatch in this, or any other serotype, can cause a serious, potentially fatal, adverse reaction after a transfusion, or a contra-indicated immune response to an organ transplant.[3] The associated anti-A and anti-B antibodies are usually IgM antibodies, which are produced in the first years of life by sensitization to environmental substances, such as food, bacteria, and viruses. ABO blood types are also present in some other animals, for example rodents and apes, such as chimpanzees, bonobos, and gorillas