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

Mutation
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 mutagens, or infection by viruses.

Mutation - Wikipedia
3.1By effect on structure.

Mutation - Types, Causes, Mechanisms, Agents, Importance
What is Mutation? Mutation refers to a permanent alteration in the DNA sequence of a gene or chromosome. This change can occur due to intrinsic factors, such as errors during DNA replication, or extrinsic factors, including exposure to environmental elements like UV light.

MUTATION Definition & Meaning - Merriam-Webster
The meaning of MUTATION is a significant and basic alteration : change. How to use mutation in a sentence.

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

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 chunk of DNA being deleted or rearranged.

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

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 happens or not is unrelated to how useful that mutation would be.

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 see in human hair color, skin color, height, shape, behavior, and susceptibility to disease.