When an antigen is bound to an antibody,it binds to
A)The heavy immunoglobulin chain only
B)The light immunoglobulin chain only
C)A specific antigen-binding site formed by heavy and light chains
D)A hypervariable region of immunoglobulin DNA
E)Gamma immunoglobulin only

Question

Quizplus · Accepted Answer

When an antigen is bound to an antibody, it binds to a specific antigen-binding site formed by heavy and light chains. These binding sites are highly specific for a particular antigen, which allows for the recognition and elimination of specific pathogens.

Answers A, B, D, and E are incorrect because the binding of an antigen to an antibody involves both heavy and light chains, not just one or the other. Gamma immunoglobulin is a subtype of immunoglobulin and is not related to the binding of an antigen to an antibody.

When an Antigen Is Bound to an Antibody,it Binds to