Q. Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains :
A) Natural killer cells
B) Monocytes
C) Macrophages
D) Immunoglobulin A
Explanation
[Solution] Colostrum is rich in IgA antibodies, which give passive immunity. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.