Question

WHAT ARE BLOOD GROUPS ?

PLEASE HELPPPPP !!!​

Answer 1

Answer:

A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system. 

Answer 2

Answer:

blood is grouped based on the presence or absence of antigens on the surface of RBC