Answer:
Mutations generate the variation on which natural selection acts. the change in DNA sequence may even turn out to be beneficial to the organism. has a deleterious affect on the phenotype of the offspring, the mutation is referred to as a Every genetic feature in every organism was, initially, the result of a mutation.
Explanation:
Answer:
DNA can be damaged via environmental factors as well. Environmental agents such as UV light, ionizing radiation, and genotoxic chemicals. Replication forks can be stalled due to damaged DNA and double strand breaks are also a form of DNA damage.