epigenetics

(redirected from Epigenetic imprinting)
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ep·i·ge·net·ics

 (ĕp′ĭ-jə-nĕt′ĭks)
n. (used with a sing. verb)
The study of heritable changes in gene expression that are caused by factors such as DNA methylation rather than by a change in the sequence of base pairs in DNA itself.

epigenetics

(ˌɛpɪdʒɪˈnɛtɪks)
n (functioning as sing)
(Genetics) the study of heritable changes that occur without a change in the DNA sequence
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References in periodicals archive ?
Isolated PTH resistance (PHPIb) can result from mutations within the GNAS1 gene but is more commonly caused by epigenetic imprinting abnormalities affecting the upstream exon 1A (9).
These alterations, that persist through life, are induced by the mechanism of epigenetic imprinting (cell programming) [2,3].
Fortunately, the effects of epigenetic imprinting can potentially be reversed in cases where environmental toxins affect the epigenome of the developing fetus (Dolinoy & Jirtle, 2008) so that methyl groups can be removed by environmental conditions (Holliday, 1990).