File:DNA Structure+Key+Labelled.pngthe license of your choice. English Punjabi The structure of DNA showing with detail showing the structure of the four bases, adenine, cytosine, guanine
File:DNA Structure+Key+Labelled-es.pngDescriptionDNA Structure+Key+Labelled-es.png Español: Detalle da la estructura de la doble hélice del DNA Date 28 October 2013, 20:51:38 Source File:DNA Structure+Key+Labelled