What is the importance of mutation?

Mutation:

1. A sudden change in genetic character is known as a mutation.
2. A mutation is the phenomenon of alterations in the DNA sequence or chromosomal arrangement.
3. The mutation alters the genetic message carried by a gene.
4. It results in the development of new characteristics that are capable of being inherited.
5. It results either due to an error during DNA replication or damage to DNA.
6. A mutagen is an agent that can bring about a permanent alteration in the gene.