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Genetics & Molecular Biology Genetics & Molecular Medicine

DNA gene-expression microarray

Meaning of DNA gene-expression microarray: A process that allows thousands of pieces of DNA that are fixed to a glass slide to be analyzed at one time.

Definition of DNA gene-expression microarray

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.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.