A) Injecting microbes during immunization induces passive immunity.
B) Cell-mediated immune response is responsible for graft rejection.
C) Colostrum during initial days of lactation provides active immunity to infant.
D) None of the above
Correct Answer: B
Solution :
[b] Injecting microbes during immunization induces active immunity. Colostrum secreted from the mother during the initial days of lactation has abundant antibodies (IgA) to protect the foetus. This protection provides passive immunity.
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