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Epigenetics

Heritable changes in gene expression that do not alter the DNA sequence itself. Includes DNA methylation and histone modifications, which can be influenced by environment.

Example in a sentence

Epigenetics studies how methylation affects gene expression without changing the sequence.

Key facts

  • No change to DNA sequence; affects expression.
  • DNA methylation, histone marks; can be tissue-specific.

Category: Genetics & Variation

Related terms

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Epigenetics | Bioinformatics Glossary | GENOS.bio