What is antigen?

Answers (4)

The antigen is a harmful substance that enters the host body and after that which causes the body to make antibodies as a response to fight off that disease caused by that antigen.

A substance That enters the body and start a process that can cause disease.  The body then usually produces Substances  to fight the integer

A Ajith

antigen is the foreign substance or organism that enters to the body of  the  host, all antigens are not pathogenic

K Khushi

A toxin or other foreign substance which induces an immune response in the body, especially production of antibodies.