A person which unknown blood group under ABO system, has suffered much blood loss is an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type offers blood donation without delay. What would have been the type of blood group of the donor friend?
Type B
Type AB
Type O
Type A
As learnt in
Genotypes of human blood types -
There are 6 genotypes of human ABO blood types resulting 4 blood groups.
- wherein
Blood groups are A, AB, B, O
Type O blood group is universal donor.
Option 1)
Type B
This option is incorrect
Option 2)
Type AB
This option is incorrect
Option 3)
Type O
This option is correct
Option 4)
Type A
This option is incorrect
Option 3 type O
Type o blood group person is universal donor..
Bcoz they do not possess any antigen so transfusion of blood doesn't show any reaction
'O' blood group is Universal Donor So, The answer is Opt. 3