51.In gel electrophoresis, separated DNA fragments can be visualized with the help of: A. Ethidium bromide in Gamma radiation B. Ethidium bromide in Infrared radiation C. Ethidium bromide in UV radiation D. Acterocarmine in Infrared radiation
Option C Agarose gel electrophoresis is used to segregate DNA fragments according to the mass and size. Ethidium bromide is the fluorescent stain used in this technique. Ethidium bromide, when exposed to ultraviolet light, produces a fluorescent effect. Hence the DNA tagged by it can be traced quickly on the transparent gel.
