epigenome

[ ep-i-jee-nohm ]
/ ˌɛp ɪˈdʒi noʊm /

noun

Genetics. a network of chemical compounds surrounding DNA that modify the genome without altering the DNA sequences and have a role in determining which genes are active in a particular cell.

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Origin of epigenome

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020