About 81,900,000 results
Open links in new tab
  1. 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 …

  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 · What Is a Genetic Mutation? Definition & Types. Genetic mutations are changes to your DNA sequence that happen during cell division when your cells make copies of …

  4. 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 …

  5. What Is a Genetic Mutation and Why Does It Matter?

    Aug 6, 2025 · When a mutation occurs in a germ cell and is passed to offspring, it becomes part of that individual’s genome. If the mutation improves survival or reproduction, it may spread …

  6. 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 …

  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. DNA and Mutations - Understanding Evolution

    A mutation is a change in DNA, the hereditary material of life. An organism’s DNA affects how it looks, how it behaves, and its physiology. So a change in an organism’s DNA can cause …

  9. Mutation Definition - BYJU'S

    A mutation in biology is a modification of the nucleic acid sequence of a virus, extrachromosomal DNA, or the genome of an organism. The observable traits of an organism (phenotype) may or …

  10. Mutation - Definition and Examples - Biology Online Dictionary

    Mutation in general means a change or the process of changing, such as in nature, form, or quality. In biology, mutation refers to any change in the nucleotide sequence as a result of a …