A Mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed.
(A Mutagen; is; an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed) (substance; can bring about; a permanent alteration; to the physical composition of a DNA gene) (the genetic message; is changed; ) (A Mutagen; is an agent of; substance)
A Mutagen substance the genetic message A Mutagen
is can bring about is changed is an agent of
an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed
a permanent alteration to the physical composition of a DNA gene
substance