Question

What is the reason behind different types of Blood groups in human beings?


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Answer 1

There are four main types of blood groups that is A, B, AB, O. The group mostly depends on special markers on the surface of red blood cells, called antigens. These helps the body to identify the blood cells that do not belong to you. Patients who need a blood transfusion must receive the right blood group, or body will reject the donated blood, making them even more unwell.

Answer 2

Answer:

The reason for different types of blood groups is just evolution and different types of protiens and glycoprotiens found in human red blood cells. It is not neccessary that every person has the same kind of these protiens so they have different blood groups.

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