Characteristics of a Molecule that Make it an Antigen | Zoology
To be an antigen, the molecule should have several characteristics: Characteristic # 1. Foreignness: The immune system possesses the capacity to distinguish between self and non-self. An antigen molecule must be recognised as non-self by the biologic system to elicit an immune response. When an antigen is introduced into an organism, the degree of its immunogenicity depends on the degree [...]