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| Description: Secondary and Tertiary Structure of Nucleic Acids Electron micrograph showing three human mitochondrial DNA molecules. All three are of identical sequence and contain 16,569 bp each. However, the molecule in the center is relaxed, whereas those at top and bottom are tightly supercoiled. Most DNA molecules found in vivo are left-handed supercoils. Picture Stats: Views: 897 Filesize: 1.16MB Height: 787 Width: 616 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=33886 |