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

    Sep 18, 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 …

  2. 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 …

  3. What Is a Genetic Mutation? Definition & Types - Cleveland Clinic

    May 24, 2022 · Genetic mutations are changes to your DNA sequence that happen during cell division when your cells make copies of themselves. Your DNA tells your body how to form …

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

    Apr 17, 2025 · The outcome of a mutation depends on many factors: where in the gene it occurs, what type of cell it’s in, whether it’s dominant or recessive, and whether the body has …

  5. Types of mutations - Understanding Evolution

    Since protein-coding DNA is divided into codons three bases long, insertions and deletions can alter a gene so that its message is no longer correctly parsed. These changes are called …

  6. Biochemistry, Mutation - StatPearls - NCBI Bookshelf

    The mechanisms of genetic mutations can be divided into four categories: mutations induced by mutagens, molecular decay, errors during DNA repair, and errors during DNA replication.

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

    Sep 23, 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.

  8. Types of Mutations: Definition, Structure, Expression, Facts ...

    Jul 21, 2025 · Chromosomal gene mutations are those involving large changes in the structure of chromosomes, like deletions, duplications, inversions, and translocations. Chromosomal …

  9. 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.

  10. Mutation – Types, Causes, Mechanisms, Agents, Importance

    Sep 11, 2024 · Mutation is a permanent change in the DNA sequence of a gene or chromosome, which can result from errors in replication or environmental factors and can affect an …