Question

Each individual antigenic determinant of the variable region of the antibody is referred to as:

• A. paratope
• B. epitope
• C. agretope
• D. idiotope

Hint:

Epitope = antigen’s determinant, Paratope = antibody’s binding site, Idiotope = antibody’s unique variable determinant.

Answer 1

The Correct Option is D

Step 1: Term Definitions.
- Paratope: Antibody's antigen-binding site.
- Epitope: Antigenic determinant on the antigen.
- Agretope: Antigen portion binding to MHC molecules.
- Idiotope: Unique antigenic determinant within the antibody's variable region. Step 2: Summary.
Therefore, idiotope is the term for antigenic determinants in the antibody variable region.
Final Answer: \[ \boxed{\text{idiotope}} \]