is 2.83 MB, has a resolution of 1044x1421 pixels and was uploaded on September 8, 2019 @ 6:47 am by user: timkoher. It is filed under the tags: electron microscope, biophysics, nucleic acid double helix, organism, histone h1. Click the blue button at the top to freely download: Science Chromatin Nucleic Acid Double Helix Cryogenic Electron Microscopy Microscope Chromosome png.