Blood Grouping- A, B, AB and O

Blood Grouping :

K.Landsteiner in 1900-1902, classified human blood into four groups, A,B, AB and O. The O Group blood can be given to any other groups and therefore a person possessing the O group is known as a universal donor. Group AB is called universal recipient and can receive from A,B,AB and O blood Groups

Column1	Column2	Column3
Blood Group	Can donate blood to	Can receive blood from
A	A,AB	A and O
B	B,AB	B and O
AB	Only AB	AB, A, B and C
O	AB, A ,B and O	Only O

Groups Blood Clotting  : Blood Clotting is a body defence system to combat bleeding. Plasma contains fibrinogen-a soluble ‘protein’ which produces insoluble protein called fibrin essential for blood Clotting which is produced in liver.