A mutagen (Latin, roughly change maker) 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 can be chemical compounds or radiation.
There are several methods to detect how mutagenic an agent is:
... occurs lower than normal in hypospadias). A chordee[?] is when the urethra develops between the penis and the scrotum.
Infection of the urethra is urethritis, said to ...