Question

4. A chemical or physical agent in the environment

that causes a mutation is called a
A. leucism.
B. point mutation.
C. mutagen
D. polyploidy

Answer 1

Mutagen

Step-by-step explanation:

Answer 2

Mutagen

Step-by-step explanation:

In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level.