MCQ
Which blood group is called as universal donor?
- ✓$O$
- B$A$
- C$B$
- D$AB$
$O$ negative blood is considered the universal blood donor type.
It is compatible with all $A, AB, B$, and $O$ positive blood types.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.