People with Type _______ Blood are Known as Universal Donors

Question

People with type _______ blood are known as universal donors.
A) A
B) B
C) AB
D) O

Accepted Answer

People with type O blood do not have antigens on their red blood cells, making their blood compatible with all other blood types. Therefore, they are known as universal donors as their blood can be transfused to anyone in need without causing an adverse reaction.