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ZoologyNEET 2025Immunity, vaccination, AIDS, cancer

Human Health and Disease

Identify the statement that is not correct.

  1. A.Each antibody has two light and two heavy chains.
  2. B.The heavy and light chains are held together by disulfide bonds.
  3. C.The antigen-binding site is located at the C-terminal region of antibody molecules.✓
  4. D.The constant regions of heavy and light chains are located at the C-terminus of antibody molecules.

Solution

Antigen-binding sites lie in the variable regions at the N-terminal ends of the heavy and light chains; the constant regions form the C-terminal end. Statement 3 is the incorrect one.

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