Genetic Function
gene expression Audio
ex·pres·sion [ jeen ek-spreh-shun ]
Definitions related to gene expression:
  • The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The process by which a gene gets turned on in a cell to make RNA and proteins. Gene expression may be measured by looking at the RNA, or the protein made from the RNA, or what the protein does in a cell.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • The process in which a gene's sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
  • Typically involves transcription of genetically encoded information into an intermediary message (messenger RNA) and subsequent translation into a functional protein.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.