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Question

The ability of the body's immune system to recognize its own tissues is known as

A
Immunologic tolerance
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B
Autoimmunity
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C
Severe combined immunodeficiency disease
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D
Hypersensitivity
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Solution

The correct option is B Immunologic tolerance
  • Immunologic tolerance is the state of unresponsiveness of the immune system to substances or tissues that have the potential to induce an immune response. Self-tolerance to individuals own antigen is achieved through central and peripheral tolerance.
  • Autoimmunity is the system of immune responses of an organism against its own healthy cells and tissues.
  • Severe combined immunodeficiency (SCID) is a group of rare disorders caused by mutations in different genes involved in the development and function of infection-fighting immune cells.
  • Hypersensitivity (also called hypersensitivity reaction or intolerance) refers to undesirable reactions produced by the normal immune system, including allergies and autoimmunity.

So, the correct option is 'Immunologic tolerance'.

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