The _______ region of an antibody determines its class; the _______ region determines its specificity.

Question

Quizplus · Accepted Answer

The constant region of an antibody determines its class, while the variable region determines its specificity. This is because the constant region is relatively conserved among different antibodies, while the variable region contains the unique antigen-binding site. Therefore, answer choice B, constant and variable, is the best choice.

The _______ Region of an Antibody Determines Its Class; the _______

The _ Region of an Antibody Determines Its Class; the _