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

  1. A
    Rejection of a kidney graft is the function of B-lymphocytes.
  2. B
    Preformed antibodies need to be injected to treat the bite by a viper snake.
  3. C
    The antibodies against small pox pathogen are produced by T-lymphocytes.
  4. D
    Antibodies are protein molecules, each of which has four light chains.

Solution & Step-by-step Explanation

* (A) Incorrect: Graft rejection is Cell-Mediated Immunity (CMI) involving T-lymphocytes.(B) Correct: Passive immunization (antitoxin/antibodies) is required for quick response against snake venom.(C) Incorrect: Antibodies are produced by B-lymphocytes (Plasma cells).(D) Incorrect: Antibody has light and heavy chains ().

Practice this question

Try it yourself before checking the explanation above.

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

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