Q. Which Ig is produced in primary immune response?

A) IgA
B) IgE
C) IgG
D) IgM
Explanation

Immunoglobulin M (IgM) is the largest Ig. It is the first Ig produced in a primary response to an antigen and is frequently seen in the immune responses to antigenically complex organisms like viruses and bacteria.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.