80.6k views
3 votes
How are the major blood groups determined?

2 Answers

0 votes
Human blood type is determined by the presence or absence of certain identifiers on the surface of red blood cells. ... There are four main ABO blood type groupings: A, B, AB, and O. These blood groups are determined by the antigen on the blood cell surface and the antibodies present in the blood plasma.
User Yechiel
by
4.7k points
4 votes

There are four main ABO blood type groupings: A, B, AB, and O.

User Larsschwegmann
by
5.8k points