Question

76. A human female with blood group A has -
(a) Antigen B on red blood cells and
antibody anti-B in the serum
(b) Antigen A in the serum and antibody
anti-B on red blood cells
(c) Antigen A on red blood cells and
antibody anti-B in the serum
(d) Antigen A on red blood cells and
antibody anti-A in the serum​

Answer 1

Answer:

(c) Antigen A on the Red blood Cells and Antibody Anti-B in the serum.

Answer 2

A person with blood group A will have anti-B antibodies on the red blood cells and antigen A in the serum

• Different blood groups have different types of antigens in their serum and different types of antibodies on their RBCs due to which blood mixing can result in coagulation which can be fatal.
• Blood type A has the following in their blood

1. Antigen - Antigen A in serum
2. Antibody - Anti- B antibodies on the surface of the RBCs

Thus,  A human female with blood group A has (Option b) Antigen A in the serum and antibody  anti-B on red blood cells