Which of the following is the best definition of antigen?
A)something foreign in the body
B)a chemical that elicits an antibody response and can combine with these antibodies
C)a chemical that combines with antibodies
D)a pathogen
E)a protein that combines with antibodies

Question

Quizplus · Accepted Answer

An antigen is a chemical substance that can elicit an immune response and can bind to antibodies. Antigens can be foreign to the body, but can also exist naturally within the body. Antigens can be proteins, carbohydrates, or other molecules.

Which of the Following Is the Best Definition of Antigen