Alternative structures for Deoxyribose

Note that numbering in the Haworth structure of Deoxyribose sugar proceeds clock-wise, with the 5'-C projecting. This is the numbering system used in molecular biology. The Fischer structure numbering runs top to bottom, and is often used in organic chemistry

Figure 2012 TA Brown, Introduction to Genetics (1st ed.); additional text 2013 by Steven M. Carr