Question

A molecule that produces an immune response is

• A. Antigen
• B. Antibody
• C. Carcinogen
• D. Mutagen

Answer 1

The correct option is A Antigen

An antigen is a foreign substance which produces an immune response and is specifically bound to antibodies. Each antibody is specifically produced by the immune system to match an antigen after cells in the immune system come into contact with it, this allows a precise identification or matching of the antigen. Antigens are usually proteins, peptides and polysaccharides which elicit an immune response.

So, the correct answer is 'Antigen'.