Aneugen

An aneugen is a substance that causes a daughter cell to have an abnormal number of chromosomes or aneuploidy. A substance's aneugenicity reflects its ability to induce aneuploidy. Unlike clastogens, aneugenic events do not damage the physical structure of the chromosome, but represent a deletion or insertion of an additional copy of a whole chromosome. Aneugens and clastogens can be differentiated via certain stains, using the technique of Fluorescence in situ hybridization.

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