Question

Write a short note on blood group in humans ​

Answer 1

Answer:

Blood Group:

On the basis of the presence of antigens and antibodies Karl Landstiener had divided the human blood into four groups −A,B,AB,andO

Human blood groups:

S.NoBlood groupAntigenAntibody1.AAb2.BBa3.ABA and BNone4.Ononea and bImportance of blood group: Due to the knowledge of blood group blood donation has been proved as a boon for the society. By this if  blood is required for victims of accident and sick persons then blood of appropriate group could be made available by the blood banks or registered voluntary blood donors easily. They are important in the field of law and justice. By taking samples and tests of DNA, culprits could be caught.

Answer 2

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There are 4 main blood groups defined by the ABO system : -

1. blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma.
2. blood group B – has B antigens with anti-A antibodies in the plasma.
3. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma.

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