Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.
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I read that it is the DNA in body fluids that make them fluoresce under UV light but I'm not sure why. If that's true, why do we need to add ethidium bromide to visualize DNA gels, wouldn't the DNA be visible by itself? Is it just a mater of intensity? I also heard that body fluids have to be dry in order to fluoresce, is that true and why would that be the case?
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