Question

how many blood groups are there in human body

Answer 1

All humans and many other primates can be typed for the ABO blood group. There are fourprincipal types: A, B, AB, and O. There are two antigens and two antibodies that are mostly responsible for the ABO types. The specific combination of these four components determines an individual's type in most cases.

Answer 2

there are four blood groups in human hody
A blood group
AB blood group
B blood group
O blood group
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