Deoxyribose vs ribose

Deoxyribose vs Ribose sugars


2-Deoxy-Ribose in DNA is replaced by Ribose in RNA.

The difference is a hydroxy group ( -OH ) in RNA versus a single proton ( -H ) in DNA. The extra -O- in the ribose backbone prevents formation of stable double-helices in RNA.
 


text © 2012 by Steven M. Carr