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Biology
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Into which two groups can the nitrogen-containing bases that form DNA and RNA be classified? What is the criterion used in that classification?


Dec 24th, 2014

The nitrogen-containing bases that form DNA and RNA are classified as pyrimidine and purine bases.

By the analysis of the structural formulae of those nitrogen-containing bases it is possible to realize that three of them, cytosine, thymine and uracil, have only one nitrogenized carbon ring. The others, adenine and guanine, have two nitrogenized associated carbon rings.


Dec 24th, 2014

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