When Antibodies Bind Antigens, the Clumping of Antigens Results From

Question

When antibodies bind antigens, the clumping of antigens results from
A) the multivalence of the antibody having at least two binding regions.
B) disulfide bridges between the antigens.
C) complement that makes the affected cells sticky.
D) bonds between class I and class II MHC molecules.
E) denaturation of the antibodies.

Accepted Answer

The multivalence of the antibody, which means it has at least two binding regions, allows it to bind to multiple antigens simultaneously, leading to clumping. Disulfide bridges between antigens, complement activation, and MHC molecules are not directly involved in clumping. Denaturation of antibodies would prevent them from binding antigens at all.