In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. [1] Viral genomes contain either DNA or RNA.

Aug 29, 2025 · mutation, an alteration in the genetic material (the genome) of a cell of a living organism or of a virus that is more or less permanent and that can be transmitted to the cell’s …

We often refer to a mutation as a thing—the genetic variation itself. This approach can be useful when it comes to a gene associated with a disease: the disease allele carries a mutation, a …

3 days ago · A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals …

May 24, 2022 · A genetic mutation changes the information your cells need to form and function. Your genes are responsible for making proteins that tell your body what physical …

A mutation is a change that occurs in our DNA sequence. This can be caused by normal processes inside the cell or by environmental factors, such as UV light.

The meaning of MUTATION is a significant and basic alteration : change. How to use mutation in a sentence.

Aug 6, 2025 · A genetic mutation occurs when there is a change in the DNA sequence. These changes can be caused by errors in DNA replication, environmental factors like radiation or …

Mutations – changes in the genetic sequence of DNA or RNA – are the raw material for evolution. Natural selection, genetic drift, and other evolutionary processes act on genetic variation – and …

Apr 29, 2025 · Genetic mutations are changes in the DNA sequence that can significantly affect an organism’s health and development. These alterations can occur spontaneously or be …