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Segments of antigen that are recognized by antibody are

  • A.Memory regions
  • B.Epitopes
  • C.Nondeterminants
  • D.Self limitation

Answer: B

Correct answer: Epitopes

An epitope (antigenic determinant) is the small part of an antigen that an antibody actually binds - a few amino acids or sugar residues on the surface. A single large antigen carries many different epitopes, which is why one protein provokes many different antibodies.

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