Multiple choice

Which among the following statements does not characterises an idiotype?

  1. It is independent of the constant region of the T-cell receptor.

  2. An epitope is an antigenic determinant.

  3. Idiotype is sometimes used to describe the collection of multiple idiotopes.

  4. The idiotype describes the distinctive sequence and region that makes any immunoglobing.

  5. The idiotype defines the surface and properties of the constant region of antigen receptors of T cells.
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E Correct answer
Explanation

Idiotype defines the surface and properties of the variable region and of antigen receptors of T cells. Thus, determining the antigen specificity and therefore the idiotope of the molecule.

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