A NUMBER of methods have been published for the column chromatographic separation of the purine and pyrimidine bases 1. The shortcomings of these are their slow rates of flow and the fact that the ...
This image illustrates the chemical structures of the five main nucleobases found in DNA and RNA. The pyrimidines, thymine (DNA), uracil (RNA), and cytosine are shown on top while the purines, adenine ...
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