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  1. Mutation | Definition, Causes, Types, & Facts | Britannica

    Jan 16, 2026 · 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 or the virus’s …

  2. 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] . Mutations result from errors during replication, mitosis, meiosis, or …

  3. Mutation

    1 day 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 called …

  4. 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 DNA change that …

  5. 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 characteristics you …

  6. Mutations - Understanding Evolution

    Mutations can be beneficial, neutral, or harmful for the organism, but mutations do not “try” to supply what the organism “needs.” In this respect, mutations are random — whether a particular mutation …

  7. What is a Mutation? Understanding DNA Changes and Their Impact …

    Apr 17, 2025 · To understand mutation is to appreciate both the fragility and resilience of life. It reveals how a single letter change in a molecule can alter the course of history—or the fate of an individual.

  8. Genetic Mutation: Definition, Types, Functions, and More - Health

    Dec 19, 2025 · A genetic mutation is an alteration in the genetic code found in DNA. Mutations can be harmful, neutral, or helpful and play a role in evolution.

  9. What Are Genetic Mutations, Their Causes, and Effects?

    Aug 4, 2025 · A mutation is like a change in this recipe, such as a misplaced ingredient or an altered instruction. These changes can range from a single “letter” (nucleotide) being swapped for another, …

  10. What is a mutation and what causes mutations? - YourGenome

    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.