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Relating to or arising from nongenetic influences on gene expression.‘epigenetic carcinogens’
- ‘Such variations might arise from minor genetic differences or by epigenetic influences causing induction, enhancement or inhibition of repair enzyme synthesis or activity.’
- ‘The embryo is human, since it has the genetic constitution and epigenetic primordia characteristic of human beings.’
- ‘There are epigenetic influences at work (changes in inheritance by means other than changing DNA sequence,) and we're just barely starting to understand them.’
- ‘However, backcrossing is a gradual procedure that, apart from being lengthy, cannot ascertain that genetic and epigenetic changes will modify the original nuclear genotype.’
- ‘Hence, we investigated molecular genetic and epigenetic events in oral carcinogenesis.’
- 1.1Relating to or of the nature of epigenesis.
Formed later than the surrounding or underlying rock formation.
- ‘Thus, the ore minerals form after the host rock and are called epigenetic.’
- ‘The metamorphic rocks along the northwest margin of the Reading Prong, as well as the adjacent Paleozoic carbonates, contain epigenetic minerals deposited predominantly in open spaces.’
- ‘Ores formed at the same time as their host rocks are referred to as syngenetic; ores formed after the host rock are called epigenetic.’
- ‘A number of different theories are postulated for the formation of the copper deposits, but all generally agree that the deposits are epigenetic and that the ore-bearing solutions were hydrothermal.’
- ‘More recent studies suggest an epigenetic origin, indicating that sulphide-rich iron formation is a replacement type rather than a primary sedimentary facies.’
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