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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Expresión de un gen

Gene expression (JEEN ek-SPREH-shun)
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.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.