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

    Oct 31, 2025 · Because mutations are random changes, they are expected to be mostly deleterious, but some may be beneficial in certain environments. In general, mutation is the …

  2. Mutation - Wikipedia

    Mutations may or may not produce detectable changes in the observable characteristics (phenotype) of an organism. Mutations play a part in both normal and abnormal biological …

  3. Genetic Mutations in Humans - 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 Genetic Mutation and Why Does It Matter?

    Aug 6, 2025 · Some mutations affect just one gene, while others span entire chromosomes. Importantly, mutations can occur in somatic cells (non-reproductive cells) or germ cells (sperm …

  5. Mutations (article) | Khan Academy

    Mutations can be considered harmful, beneficial, or neutral to an organism. Harmful mutations have negative effects on an organism’s health and survival. For example, some mutations …

  6. 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 …

  7. Mutations - Understanding Evolution

    Mutations are changes in the information contained in genetic material. For most of life, this means a change in the sequence of DNA, the hereditary material of life.

  8. What is Mutation? - University of Utah

    Mutation creates slightly different versions of the same genes, called alleles. These small differences in DNA sequence make every individual unique. They account for the variation we …

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

    Sep 11, 2024 · Mutations can be categorized broadly into two types: gene mutations and chromosome mutations. Gene mutations involve changes in the nucleotide sequence of a …

  10. 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.