Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to…

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:
  1. Natural killer cells
  2. Monocytes
  3. Macrophages
  4. Immunoglobulin A

Solution

IgA or immunoglobulin A is the primary antibody present in colostrum, and also present in Saliva, mucus, and other secretions. IgA is very essential to provide immunity to the newborn because the immune system of the newborns is not fully developed.

Asked in: NEET 2019 (All India)

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