What is Mutation?A mutation is a change in an organism's, a virus's, or extrachromosomal DNA's nucleic acid sequence. DNA or RNA may be present in the viral genome. Mutations may be caused by mistakes in DNA replication, viral replication, mitosis, meiosis, or other types of DNA damage, like pyrimidine dimers from exposure to ultraviolet light. These errors can then lead to error-prone repair, particularly microhomology-mediated end joining, error-prone repair during other forms of repair, or even errors during replication (translation synthesis). Due to mobile genetic elements, mutations can also result from the insertion or deletion of DNA segment
