Immunodeficiency makes a person highly susceptible to infection. It is caused by

  • A
    Lack of $B-$cells
  • B
    Lack of $T-$cells
  • C
    Both $(a)$ and $(b)$
  • D
    None of the above

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Which of the following provides passive immunity?

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Reason : Anti-tetanus injection provides immunity by producing antibodies for tetanus.

Select the incorrect statement regarding passive immunity.

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