epigenetics

American  

[ep-i-juh-net-iks] / ˌɛp ɪ dʒəˈnɛt ɪks /

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.

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epigenetics British  

/ ˌɛpɪdʒɪˈnɛtɪks /

noun

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

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epigenetics Scientific  

/ ĕp′ĭ-jə-nĕt′ĭks /

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.

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Etymology

Origin of epigenetics

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.

From Salon

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.

From Science Daily

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

From Science Daily

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.

From Science Daily

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

From Science Daily