- Evolution 101: Genetic Variation
 - Introduction to the basic mechanisms of evolutionary change: mutations, gene flow, genetic shuffling, and development. - Evolution in Action
- Interactive feature showing how random mutations can lead to species-wide change.
- Evolution Library: A Mutation Story
- Tells the story of a genetic mutation affecting the population of West Africa.
- Mutation
- Examines the difficulties in studying mutation, the ultimate source of all genetic variation.
- Mutation, DNA Repair, and Recombination
- Looks at changes in the information stored in the genetic material, how they occur, and what the consequences of such changes are, and strategies cells use to minimize DNA changes and damage.
- Science Explained: Genetic Variation
- Offers an introduction to the three categories of mutations genome, chromosomal, and gene as well as mutation mechanisms and types.
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