Pyrimidines Assignment Help | Pyrimidines Homework Help


The Pyrimidine base consists of a six-membered ring with two nitrogen atoms shown below.

The main pyrimidine bases are cytosine, uracil and thymine. Uracil is found in RNA and thymine almost exclusively in DNA.

thymine and cytosine               
uracil and methy

        5-methyl cytosine is rare base. There are some pyrimidine derivatives of physiological importance, such as thiouracil and alloxan, which are used for treatment of hyperthyroidism.

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