What are blood group substances ?
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blood group substances. The oligosaccharide moieties of glycoproteins that appear in many biological fluids (saliva, urine, milk) as well as on the surface of erythrocytes. These antigens, upon reaction with specific antibodies, cause agglutination of the cells to which they are attached.
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they are
o group
AB group
A group
B group
O+ group
o group
AB group
A group
B group
O+ group
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