PREVIOUSLY ASKED IN:
PSC Miscellaneous 2012
Answer
O
Explanation
O-negative blood group is known as the universal donor because its red blood cells do not have A or B antigens, making it safe to donate to people of any blood group.
Key Points
- > O group is donor
- > Antigens absent
- > Important in blood transfusion
Additional Information
- The main human blood groups are A, B, AB, and O.
- AB-positive is the universal recipient.
- Karl Landsteiner discovered blood groups.
| Group | Type |
|---|---|
| O-Negative | Universal Donor |
| AB-Positive | Universal Recipient |