Answer:
When occurs in gametes
Step-by-step explanation:
Mutations are changes in DNA sequence that can create genetic variation within the population and thus are the ultimate source of new alleles . Mutations can occur as a result of mistake during the DNA replication, under the influence of environmental factors (UV radiation, chemical agents). They can be harmful, beneficial, neutral. Based on the location of cell mutation, they can be divided into:
- somatic mutation-within the somatic cells, these mutations affect only the parents (not inherited)
- germline mutation-within gametes, can be inherited on offspring.