Questions :
Which blood group is known as the universal donor?
Options :
- A Negative
- B Negative
- O Negative
- AB Negative
correct answer : c)
Explanation :
O Negative blood group is known as the universal donor because its red blood cells do not contain A, B, or Rh antigens, making it compatible with all blood groups during emergency transfusions. A Negative and B Negative blood groups can donate only to specific compatible groups, while AB Negative is a rare blood group but is not considered a universal donor.