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.
Mutation is a change in the nucleotide sequence of genetic materials whether by substitution, duplication, insertion, deletion, or inversion. Mutations provide genetic variations which are the raw materials of evolution. Mutations are of two type: 1. Spontaneous mutation: Usual mutation under natural conditions. 2.