Which of the following statements best characterizes an antibody?
A) An antibody contains high molecular weight RNA as its basic structure.
B) An antibody is composed of protein and cannot be distinguished from the albumin fraction of the serum proteins.
C) An antibody is composed of four identical protein subunits which may be caused to dissociate by treatment with urea.
D) An antibody contains protein as its major chemical component and its synthesis may be elicited by the administration of a foreign protein or polysaccharide.
E) An antibody contains mucopolysaccharides as its major chemical component and the synthesis of these may be elicited by the administration of a foreign protein or polysaccharide.

Question

Quizplus · Accepted Answer

An antibody is composed of protein as its major chemical component and its synthesis may be elicited by the administration of a foreign protein or polysaccharide. Antibodies are a type of immunoglobulin protein produced by B cells in response to the presence of foreign substances or antigens in the body. They play a critical role in the immune response by binding specifically to antigens and marking them for destruction by other immune cells. Antibodies are made up of four protein subunits, each with a variable and constant region, and can be dissociated by treatment with urea.

Which of the Following Statements Best Characterizes an Antibody