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.