Which one of the following statements is correct with respect to immunity?

Biology · NEET · NTA ExamsHuman Health and Diseases

Which one of the following statements is correct with respect to immunity?
  1. Preformed antibodies need to be injected to treat the bite by a viper snake
  2. The antibodies against small pox pathogen are produced by T-lymphocytes
  3. Antibodies are protein molecules, each of which has four light chains
  4. Rejection of a kidney graft is the function of B-lymphocytes

Answer

(A) Preformed antibodies need to be injected to treat the bite by a viper snake

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