Mutation | Definition, Causes, Types, & Facts | Britannica
Oct 31, 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 …
Mutation - Wikipedia
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.
Mutation
4 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 …
What Is a Genetic Mutation? Definition & Types - Cleveland Clinic
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 …
What is Mutation? - University of Utah
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 …
Mutations (article) | Khan Academy
Learn about beneficial, neutral, and harmful genetic mutations.
What Is a Genetic Mutation and Why Does It Matter?
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 …