Answer:
There are more
than 30 antigens on the surface of blood cells that give rise to different blood
groups.
ABO Grouping ABO
grouping is based on the presence or absence of two surface antigens on the
RBCs namely. A and B. The plasma of different individuals contain two natural
antibodies. The distribution of antigen and antibody in the four groups of
blood, A, AB, B and 0 are explained above in the table.
Human
ABO Blood Groups and their Compatibility
From the above table
it is evident that group 'O' blood can be donated to persons with any other
blood group and hence 'O' group individuals are called 'Universal donors'.
Person with 'AB' blood can accept blood from persons with AB, as well as the
other groups of blood. Therefore, such persons are called 'Universal
recipients'.
Blood Group
Genotype
Antigens on Red Blood Corpuscles
Antibodies in Blood Plasma
Donor
Recipient
A
B
AB
O
A
B
AB
None
B
a
None
a,b
A,AB
B,AB
AB
AB,A,B,O
A,O
B,O
AB,A,B,O
O
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