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Definition of Autoradiography
Medically reviewed by Min Clinic Staff | Updated: January 2026
Autoradiography: A technique using X- ray film to visualize molecules or fragments of molecules that have been radioactively labeled. Autoradiography has many applications in the laboratory. Autoradiography can, for example, be used to analyze the length and number of DNA fragments after they are separated from one another by a method called gel electrophoresis.