Question

When red blood corpuscles containing both A and B antigens are mixed with your blood serum, they agglutinate. Which is the blood group type from the following?

• A. A
• B. B
• C. AB
• D. O

Answer 1

Answer: (D)

O

A person with blood group O does not contain any antigen but contains both anti-A and anti-B antibodies. Thus when blood with both A and B antigens are mixed with a blood type and it causes agglutination, it is O type as O type has both antibodies which will cause clumping with antigens A and B. Therefore a person with blood group O cannot receive blood from any other blood type except O

So, the correct answer is option D.