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Question
Write in brief about the following: Blood groups
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Solution
The four types of blood in humans are called blood groups. These are A, B, AB and O. The blood is determined by the antigens present on the RBCs. RBCs also contain antibodies in the plasma.
| Blood group | Antigens in RBCs | Anitbody in plasma |
| A | A | Anti-B |
| B | B | Anti-A |
| AB | A and B | None |
| O | None | Anti-A and Anti-B |
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