Multiple choice general knowledge

What is the most common blood type in humans?

  1. A+

  2. B+

  3. O

  4. AB+
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Type O blood is the most common blood type globally, with O positive and O negative making up nearly half of the world's population. O negative is particularly valuable as the universal donor for emergency transfusions. A, B, and AB are less prevalent.

Keep practicing — related questions