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- An agent that causes a permanent genetic change in a cell other than that which occurs during normal growth. Testing to determine mutagenicity is one component of assessing the potential chronic toxicity of pesticides and other chemicals.
- any substance that induces mutations
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
- Any agent or process that can cause mutations.
- A mutagen is a chemical or physical phenomenon, such as ionizing radiation, that promotes errors in DNA replication. Exposure to a mutagen can produce DNA mutations that cause or contribute to diseases such as cancer.