Kossel isolated cytosine from calf thymus tissues and found that it was a component of nucleic acids. This discovery, along with the identification of other nitrogenous bases, laid the foundation for ...

Pyrimidines are a little different. One type of pyrimidine, called cytosine (C), occurs in both types of nucleic acid. A second pyrimidine, called thymine (T), only occurs in DNA, while the third ...

Credit: Kateryna Kon/Science Photo Library/ What is DNA, and how does it work? You don't need a degree in ...

For instance, in a 1971 essay on the history of nucleic acid research ... usually approximates the amount of cytosine (C). In other words, the total amount of purines (A + G) and the total ...

The chemical code in which the information is written is stunningly simple, consisting of only four different chemical bases, or nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G).

In DNA, guanine is always paired with cytosine, and the sequence of these base pairs determines ... Guanine is a key component of various nucleic acid-based therapies, such as antisense ...

hypoxic signaling and fatty acid metabolism, recent reports have now revealed roles for human 2-oxoglutarate–dependent oxygenases in histone and nucleic acid demethylation and in signaling ...