A mitogen is a peptide or small protein that induces a cell to begin cell division: mitosis. Mitogenesis is the induction of mitosis, typically via a mitogen. The mechanism of action of a mitogen is that it triggers signal transduction pathways involving mitogen-activated protein kinase, leading to mitosis.

What do you mean by mitogen?

: a substance that induces mitosis.

What are mitogens give example?

Any substance that triggers mitosis, as well as lymphocyte blastogenesis. Examples of mitogens are pokeweed mitogen, lipopolysaccharide, phytohaemagglutinin, and concanavalin A.