All immunogen are antigen but all antigen are immunogen?

Answer:
An Immunogen is foreign particle that triggers the body's immune system where as Antigen is also a foreign particle , due to its low molecular weight it is unable to trigger immune system. Example for antigen is Hapten
Contributor: Mahesh
First answer by Mahesh Ramaswamy. Last edit by Mahesh Ramaswamy. Contributor trust: 11 [recommend contributor recommended]. Question popularity: 2 [recommend question].