Keywords: DNA purification.jpg A purified DNA fluorescing orange under UV light being extracted with a syringe and used for molecular biology studies The purified DNA in a cesium chloride gradient binds to the ethidium bromide dye which absorbs UV light and makes the DNA fluoresce orange This visualization of a single band of DNA aids in the isolation and extraction of the DNA for future molecular biology studies Topics/Categories Science and Technology -- Genetics Type Color Photo Source Dr Bruce Chassey Laboratory National Institute Of Dental Research Li-shan Mike Mitchell Photographer 2341 1988-05 Reuse Restrictions None - This image is in the public domain and can be freely reused Please credit the source and/or author listed above Mike Mitchell Photographer PD-USGov-HHS-NIH Media from National Cancer Institute Visuals Online Images uploaded by Fæ |