Researcher examines stained & fluoresced DNA gel

Researcher examines stained & fluoresced DNA gel

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Credit: SIMON FRASER/SCIENCE PHOTO LIBRARY

Caption: DNA gel analysis. Researcher examines an agarose gel containing DNA fragments using Ultra-Violet (UV) light. The DNA fragments have been stained with ethidium bromide and are seen as fluorescent violet bands on the gel (at lower centre). The researcher is wearing a mask to protect his face from the UV light and gloves to protect his hands from the highly carcinogenic ethidium bromide. Agarose gels are a routine way in which fragments of DNA are separated by size. Samples containing various sized fragments are separated within a gel using an electric current. Such techniques are used during DNA fingerprint analysis and when isolating particular genes.

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Keywords: agarose gel, agarose gel electrophoresis, biochemistry, biotechnology, dna, dna ethidium sta, dna lab, dna mapping, dna research, dna stain, double helix, electrophoresis, electrophoresis gel, ethidium bromide, ethidium dna stain, fluorescence, genetic, genetics, laboratory, uv light

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