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Colostrum protects a newborn because it is rich in antibodies of type:

AIgG
BIgA
CIgE
DIgM
Answer & Solution
Correct answer: B. IgA
1. This is passive immunity. 2. Colostrum carries abundant IgA. 3. The foetus also gets antibodies via the placenta. _Source: syllabus Biology, Chapter 8, Human Health and Disease._
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