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

    5 days ago · 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

    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 called …

  4. 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 …

  5. What Is a Mutation? Definition, Types, and Examples

    A mutation is a change in the sequence of DNA, the molecular instruction manual inside your cells. It can be as small as a single letter of genetic code swapping for another, or as large as an entire …

  6. 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.

  7. 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 …