Nucleotide. Diagram http://www.accessexcellence.org/AB/GG/nucleotide2.html Explained http://life.fudan.edu.cn/inforservice/dictionary/Glossary/nucleoti.htm is_part_of DNA. is_part_of RNA. Metabolism http://themedicalbiochemistrypage.org/      Vr.154, Jan 2009     Readme