The specific region of an antibody to which an antigen binds is called a(n):

Question

Quizplus · Accepted Answer

The hypervariable regions, also known as complementarity-determining regions (CDRs), are the regions on the antibody molecule that directly interact with the antigen. The MHC class I and class II molecules are involved in presenting antigens to T cells, but they are not the specific region of the antibody where the antigen binds. The light and heavy chains are the two types of polypeptide chains that make up an antibody, but they do not refer specifically to the binding site for the antigen.

The Specific Region of an Antibody to Which an Antigen