Home > D. General pathology > Pathogenic agents > mutagens

# mutagens

Sunday 12 March 2006

Definition: In biology, a mutagen (Latin, literally origin of change) is an agent that changes the genetic information (usually DNA) of an organism and thus increases the number of mutations above the natural background level.

Mutagens are usually chemical compounds or ionizing radiation.

The Ames test is one method to determine how mutagenic an agent is.