BPSC – Combined Competitive Examination · પ્રશ્ન 141
Which class of immunoglobulin is the first to be produced in response to an infection?
જવાબ બતાવો અને સમજૂતી
જવાબ: (C) IgM
સમજૂતી
IgM appears first after exposure; IgG follows and gives long-term protection.
- (A) ખોટો
Wrong: IgG dominates later (secondary) responses.
- (B) ખોટો
Wrong: IgA protects mucosal surfaces.
- (C) સાચો
Correct: IgM (a pentamer) is the first antibody made in a primary response.
- (D) ખોટો
Wrong: IgE is involved in allergy and parasites.