The Atacama Desert, a 1000km stretch of parched wasteland, separates it from Peru to the north. And to the west, only a few islands dotted in the Pacific Ocean break the waves that roll onto Chileâs coast from Australasia.
What is a mutation? 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.
I. Mutations are permanent changes in the DNA. Mutations. A. most mutations are neutral; they either make no change in the expression of any gene, or the changes made do not affect the function of any gene product. 1.