Deoxyribose sugar

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Deoxyribose is a 5-sugar ring, with a similar composition as that of ribose. The main difference in composition between the two lies in the lack of hydroxyl (OH-) and introduction of a hydrogen atom that takes its place on the second carbon atom.

The deoxyribose sugar featured in DNA boasts a composition of 5 carbons and 3 oxygens and makes up the sugar-phosphate backbone which helps to hold the purines and pyrimidines (linked by hydrogen bonds) in the DNA double helix shape[1][2].


  1. Hallick, Richard, B. Introduction to DNA Structure. 1995. Introduction to DNA Structure. [ONLINE] Available at: [Accessed 01 December 2011].
  2. Luvkar, Vipul, Ribose Vs Deoxyribose. 2011. Ribose Vs Deoxyribose. [ONLINE] Available at: [Accessed 01 December 2011].
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