Perforin is secreted by which of the following cells to prevent the effect of microbes?

  • A
    Mast cells
  • B
    $PMNL$
  • C
    Natural Killer cells
  • D
    Macrophages

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Which cells are responsible for the production of immunoglobulins?

Which of the following cells act as phagocytes?

The immunity developed by the body to combat diseases during its lifetime after birth is known as:

Antibodies are synthesized by . . . . . . .

Assertion: The antibodies separated from serum are homogenous.
Reason: Monoclonal antibodies are homogenous immunological reagents.

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