Health / Medical Topics

    Mutagen

    Pronunciation

    Definition 1

    Anything that causes a mutation (a change in the DNA of a cell). DNA changes caused by mutagens may harm cells and cause certain diseases, such as cancer. Examples of mutagens include radioactive substances, x-rays, ultraviolet radiation, and certain chemicals. (NCI Dictionary)

    Definition 2

    Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes. (NLM, Medical Subject Headings)




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