Principles of Inheritance and Variation Question 31

31. A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

[2012]

(a) Blood group B

(b) Blood group $AB$

(c) Blood group $O$

(d) Blood group $A$

Show Answer

Answer : c

Hints & Solution

(c) Blood group $O$ acts as universal donor.