epimutation

See also: épimutation

English

From epi- +‎ mutation; compare epigenetic.

epimutation (plural epimutations)

(genetics) A heritable change in gene expression that does not affect the actual base pair sequence of DNA.
- 2005, Eva Jablonka, Marion J. Lamb, Evolution in Four Dimensions: Genetic, Epigenetic, Behavioral, and Symbolic Variation in the History of Life‎^[1], MIT Press, →ISBN, page 248:
  The first sign of cellular abnormality in some tumors is an epimutation—a change in heritable chromatin marks, such as an increase or decrease in the density of DNA methylation.