Respuesta :

kennadeefisher

Answer:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

Explanation:
It occurs when the DNA sequence is messed up. There would b misreads in the ribosomes when they are copying DNA.