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单词 epigenetics
释义

epigenetics

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

noun (used with a singular verb)

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.

Origin of epigenetics

1942; coined by Conrad H. Waddington, 1905–75, British biologist; blend of epigenesis and genetics

Words nearby epigenetics

epigastrocele, epigeal, epigene, epigenesis, epigenetic, epigenetics, epigenome, epigenomics, epigenous, epigeous, epiglottic cartilage
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for epigenetics

  • This process, known as epigenetics, involves the addition of small chemical tags known as methyl groups to the DNA double helix.

    How Famines Make Future Generations Fat|Carrie Arnold|May 11, 2014|DAILY BEAST

British Dictionary definitions for epigenetics

epigenetics
/ (ˌɛpɪdʒɪˈnɛtɪks) /

noun (functioning as sing)

the study of heritable changes that occur without a change in the DNA sequence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for epigenetics

epigenetics
[ ĕp′ĭ-jə-nĕtĭks ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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更新时间:2024/9/24 17:16:41