In this article we will discuss about the formation of purine and pyrimidine deoxyribonucleosies. Formation of Purine Deoxyribonucleosides-5′- Triphosphates: The deoxyribonucleotides are simply formed by reduction of the corresponding ribonucleotides. Thus reduction of carbon 2′ of ribose, takes place in E.coli and animal tissues at the ribonucleosides-5′-diphosphates stage, at the cost of a protein of […]