Question

Individuals with AB blood group have
A. No antigen A and B
B. No anti-A and anti B antibody
C. Only A antigen
D. Only AB antibodies

Answer 1

Hint: Our blood has various components on the blood cells which comprise our blood group. We get the blood group from our parents, meaning our blood group depends on the antigens present on our parent's blood cells. We have the ABO blood group system prevailing now.

Complete answer:
- Blood group is based on the presence or absence of the antibodies and antigens on the surface of RBCs. The antigens are proteins, glycolipids etc.
- We have Blood groups- A, B, O and AB.
- The agglutination occurs between perfect antigen and antibody telling us about the correct blood group of an individual.

The features of the AB blood group are:
> Option A: No antigen A and B: AB blood group individuals have both the antigens A and B on their surface.
> Option B: No anti-A and anti B antibody: The AB blood group has both the antigens A and B but does not have any antibodies, neither Anti A antibody nor anti B antibody.
> Option C: Only A antigen: It has both the antigens A and b, not only antigen A.
> Option D: Only AB antibodies: AB blood group individual RBC do not have antibodies on them, they have both the antigens A and B.

Hence, the correct answer is option (B).

Note: We have known the blood group to be negative or positive, this positive or negative is due to the Rhesus blood group system. Rh is an inherited protein on the surface of the blood cells. Presence of Rh will make you positive and its absence will make you Rh-negative. It can be inherited from any parent.