1 Answers
Option 1 : O
Concept:-
Blood group:
- K.L Landsteiner discovered blood groups in 1900, based on the presence of antigen on the cell membrane of RBC.
- He found two types of antigen A and B on the cell membrane of RBC and two types of antibodies A and B in the plasma.
- Antibodies are produced only 2- 3 months after birth.
|
Blood group |
Antigen |
Antibody |
To whom donate blood |
To whom receive blood |
Percentage of the Asian population |
|
A |
A |
B |
AB, A |
O, A |
25% |
|
B |
B |
A |
AB, B |
O, B |
25% |
|
AB |
AB |
No antibody |
AB |
A, B, AB, O |
5% |
|
O (universal donor) |
No antigen |
AB |
A, B, AB, O |
O |
45% |
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