What is mutation? Explain in detail.

A sudden change in genetic character is known as mutation. A mutation is the phenomenon of alterations in DNA. The mutation alters the genetic message carried by a gene. It results in the development of new characteristics that are capable of being inherited.

It results either due to an error during DNA replication or damage to DNA. A mutagen is an agent that can bring about a permanent alteration in the gene.

Examples of some common mutagens include bromine, sodium azide, x-rays.