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Immune System

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Multiple Choice

Which of the following is a class III molecule of the immune system?

Histocompatibility molecules are glycoproteins expressed at the surface of almost all vertebrate cells. The most rapid and severe rejection of foreign tissue occurs when there is a failure to properly match the donor and recipient for the major histocompatibility molecules. There are three categories of these molecules viz. I, II and III.

  1. Heat shock protein
  2. H2-K molecule
  3. HLA-A
  4. HLA-D
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