Meaning & use
epigenetic
Last updated
Relating to changes in gene activity or expression that do not involve alterations to the underlying DNA sequence.
See it in a sentence
Researchers found that stress can trigger epigenetic changes that affect how certain genes are expressed.
The study looked at epigenetic differences between identical twins raised in different environments.
A note on using this word
A key term in modern biology; distinguishes changes in how genes are 'read' or expressed from changes to the genetic code itself.
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