J.R. S. answered 12/14/17
Tutor
5.0
(145)
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
The antigen is the foreign substance that induces the formation of the antibody. The antibody is also called an immunoglobulin and it is a protein made by the body to fight off foreign invaders (antigens). What else would you like to know?