Q. Which of the following provides immunity to digestive tract against antigen?
A) IgA
B) IgD
C) IgG
D) IgE
Explanation
IgA is predominantly found in seromucous secretions such as saliva, tear, colostrums, milk. It is effective against a number of antigens, providing local immunity.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.