A) IgM
B) IgA
C) IgE
D) IgM and lgG
Correct Answer: D
Solution :
Immunoglobulin G (IgG) and immunoglobulin M (IgM) both are involved in lysis of foreign cell through mediator. Actually both these antibodies occur in the blood. If antigens (foreign cells), somehow, enter into the blood then (IgG and IgM) bind to these antigens and thus, enhance the effectiveness of phagocytic cells. These phagocytic cells through the process of endocytosis engulf the foreign cells. Immunoglobulin G accounts for 80% of all antibodies in serum while immunoglobulin M accounts for 5% to 10% for all the antibodies in the serum.
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