How are different blood groups formed. What is their practical implication in blood transfusion? Elaborate
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just, it is because of dna copying
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different types of blood groups are formed on the basis of the antigens and antibodies present on the surface of RBCs and plasma respectively.
people having A blood group have A antigen and B antibody
people having B blood group have B antigen and A antibody.
people having O blood group have no antigen and A and B antibody
people having AB blood group have A andB antigen but no antibody.
another factor is Rh antigen. if this antigen is present they are Rh positive eg. A+ B+ etc. if the antigen is absent then they are Rh negative eg. A–, B-,O- etc.
during blood transfusion Rh positive blood cannot be given to an Rh negative person(recipient) as the person's blood will form antibodies against the Rh antigen and this can cause death.but the vice versa is possible as the recipient is already Rh positive. this is the reason why O-(ve) blood group is called the universal donor(can be donated to people having any blood group)
people having A blood group have A antigen and B antibody
people having B blood group have B antigen and A antibody.
people having O blood group have no antigen and A and B antibody
people having AB blood group have A andB antigen but no antibody.
another factor is Rh antigen. if this antigen is present they are Rh positive eg. A+ B+ etc. if the antigen is absent then they are Rh negative eg. A–, B-,O- etc.
during blood transfusion Rh positive blood cannot be given to an Rh negative person(recipient) as the person's blood will form antibodies against the Rh antigen and this can cause death.but the vice versa is possible as the recipient is already Rh positive. this is the reason why O-(ve) blood group is called the universal donor(can be donated to people having any blood group)
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