With reference to immunoglobulins (antibodies), consider the following statements:
1. IgG is the most abundant antibody in blood and provides long-term immunity.
2. IgA is primarily found in secretions like saliva, tears, and breast milk.
3. IgE is responsible for allergic reactions and responses to parasitic infections.

Which of the above statements is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Question

With reference to immunoglobulins (antibodies), consider the following statements:
1. IgG is the most abundant antibody in blood and provides long-term immunity.
2. IgA is primarily found in secretions like saliva, tears, and breast milk.
3. IgE is responsible for allergic reactions and responses to parasitic infections.

Which of the above statements is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

ONLiNE UPSC · Accepted Answer

IgG is the most abundant antibody in the bloodstream and provides long-term immunity (Statement 1 is correct).
IgA is mainly found in mucosal secretions, including saliva, tears, and breast milk, playing a role in mucosal immunity (Statement 2 is correct).
IgE is linked to allergic reactions and helps in defending against parasitic infections (Statement 3 is correct).

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Immunoglobulins (Antibodies)

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M Question 1	⏱ 0
With reference to immunoglobulins (antibodies), consider the following statements: 1. IgG is the most abundant antibody in blood and provides long-term immunity. 2. IgA is primarily found in secretions like saliva, tears, and breast milk. 3. IgE is responsible for allergic reactions and responses to parasitic infections. Which of the above statements is/are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3