is 2.06 MB, has a resolution of 2486x1620 pixels and was uploaded on October 7, 2018 @ 10:33 am by user: lorebsch. It is filed under the tags: helix, leaf, adenine, nucleic acid double helix, nucleic acid sequence. Click the blue button at the top to freely download: DNA Z-DNA Nucleic Acid Double Helix Structure A-DNA png.