Question

question 6

type ab blood contains

a. only antibody a
b. only antibody b
c. neither antibody a nor antibody b
d. both antibody a and antibody b

Explanation:

Define ABO blood group antigens

ABO blood groups are determined by specific glycoproteins (antigens) present on the surface of Erythrocytes (red blood cells). Type AB blood has both antigen A and antigen B on the cell membranes.

Determine plasma antibody presence

The immune system naturally produces antibodies in the blood plasma against the ABO antigens that are not present on its own red blood cells.

Evaluate Type AB blood antibodies

Because individuals with Type AB blood have both A and B antigens on their Erythrocytes, their immune system does not produce antibodies against either antigen. If they did, the antibodies would attack their own red blood cells. Therefore, Type AB blood plasma contains neither antibody a nor antibody b.

Answer:

• A. only antibody a
• B. only antibody b
• C. Neither antibody a nor antibody b (Correct answer)
• D. both antibody a and antibody b