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