Question:
Which of the following is the least abundant immunoglobulin class in a normal adult?
Which of the following is the least abundant immunoglobulin class in a normal adult?
Show Hint
• IgG $>$ IgA $>$ IgM $>$ IgD $>$ IgE
• IgE is least abundant but important in allergy
Updated On: May 13, 2026
- IgG
- IgE
- IgM
- IgA
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
Different immunoglobulins are present in varying concentrations in the blood:
• IgG: Most abundant
• IgA: Second most abundant (especially in secretions)
• IgM: Present in moderate amounts
• IgE: Present in very low concentration
Step 1: Comparing immunoglobulin levels.
• IgG → Highest
• IgA → High
• IgM → Moderate
• IgE → Lowest
Step 2: Selecting the correct answer.
Thus, the least abundant immunoglobulin is IgE.
• IgG: Most abundant
• IgA: Second most abundant (especially in secretions)
• IgM: Present in moderate amounts
• IgE: Present in very low concentration
Step 1: Comparing immunoglobulin levels.
• IgG → Highest
• IgA → High
• IgM → Moderate
• IgE → Lowest
Step 2: Selecting the correct answer.
Thus, the least abundant immunoglobulin is IgE.
Was this answer helpful?
0
0
Top GAT B Biochemistry Questions
- Which one of the following modifications is NOT a natural N-terminal modification of proteins?
- What is the likely number of amino acids in a 11 KDa protein?
- The helical content of a protein can be directly determined using
Match the items in List I with items in List II.
- Among Wheat, Moong Dal, Rice, and Bajra, the one with the highest protein content is:
View More Questions
Top GAT B Immunology Questions
- NK cells are immunologically significant as they recognize and kill:
- The primary function of the class I and class II MHC molecules is:
- The selection of cells whose T-cell receptors respond to self-MHC is known as:
- Match items in List I with items in List II
List I: A. Inactivated Vaccines, B. Live attenuated Vaccines, C. Conjugate Vaccines, D. Toxoid Vaccines
List II: I. Poisonous protein, II. Killed pathogen, III. Weakened pathogen, IV. Weak antigen coat + carrier protein - Which one of the following are Professional Antigen Presenting Cells?
View More Questions
Top GAT B Questions
- Which one of the following modifications is NOT a natural N-terminal modification of proteins?
- Bacillus thuringiensis CryA controls certain caterpillar pests by
- Respiratory pathway is considered as a ________ pathway
- Many enzymes catalyze both forward and reverse reactions. Which one of the following statement is NOT correct?
- Which law of thermodynamics states that "energy of an isolated system is constant"?
View More Questions