Antigens interact with antibodies at
A)the outer end of each arm of the Y.
B)the junction of heavy and light chains.
C)different regions depending on the class of antibody.
D)the bottom stem of the heavy chain of the Y.

Question

Quizplus · Accepted Answer

Antigens interact with antibodies at the outer end of each arm of the Y-shaped antibody molecule, also known as the antigen-binding site. This is where the variable regions of the heavy and light chains come together to form a unique shape that can specifically recognize and bind to a particular antigen.

Antigens Interact with Antibodies at