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NCI Dictionary of Cancer Terms


DNA gene-expression microarray  listen  (… jeen-ek-SPREH-shun MY-kroh-uh-RAY)

  A process that allows thousands of pieces of DNA that are fixed to a glass slide to be analyzed at one time. It is used to identify the genes (pieces of DNA) in specific cells or tissue that are actively used to make RNA, which then may be used to make proteins.