Question

Match List-I with List-II:

List-I	List-II
(A) IgA	(i) Basophils
(B) IgE	(ii) Secretory components
(C) IgG	(iii) Pentamer
(D) IgM	(iv) Crosses Placenta

Choose the correct answer from the options given below:

• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (I), (B) - (III), (C) - (II), (D) - (IV)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

IgA is found in secretions, IgE is involved in allergy, IgG is the most abundant antibody in the blood, and IgM is produced first during an immune response. Understanding the function of each will help to distinguish them based on their properties.

Answer 1

The Correct Option is C

Immunoglobulins with their specific roles:
• IgA is in mucosal secretions and is associated with secretory components.
• IgE activate basophils and mast cells in allergic reactions.
• IgG crosses the placenta, providing immunity to fetus.
• IgM is the first antibody in an immune response and exists as a pentamer.
Therefore, the correct answer is: (A) - (II), (B) - (I), (C) - (IV), (D) - (III)