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.
