epigenetics

[ep-i-juh-net-iks]

noun

(used with a singular verb)

1. Genetics.,  the study of the process by which genetic information is translated into the substance and behavior of an organism: specifically, the study of the way in which the expression of heritable traits is modified by environmental influences or other mechanisms without a change to the DNA sequence.

epigenetics

/ ˌɛpɪdʒɪˈnɛtɪks /

noun

1. the study of heritable changes that occur without a change in the DNA sequence

epigenetics

1. The study of heritable changes in gene expression caused by factors such as DNA methylation rather than by a change in the sequence of base pairs in DNA itself.

Word History and Origins

Origin of epigenetics¹

Coined in 1942 by English biologist Conrad H. Waddington (1905–75); blend of epigenesis and genetics

Example Sentences

I write in my book, “Confessions of a Funeral Director,” that behavioral epigenetics have found that our experiences can be passed down on a molecular level.

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Skinner's team analyzed their cells for modifications to their epigenetics, which are molecular factors and processes that are independent of DNA sequence but determine how genes behave.

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Researchers at ETH Zurich have discovered a mechanism behind the yo-yo effect: fat cells have a memory that is based on epigenetics.

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The mt-tsRNAs play a role in epigenetics, regulating gene expression in the early embryo: they can indirectly influence the development and health of the offspring by modifying the activity of certain genes in the mitochondria.

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It also integrates 3D genomic data and epigenetics -- which measures how genes may be modified by environment to influence disease -- into its modeling.

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