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| Description: Nucleotides are linked to form a strand of DNA. The four bases found in DNA are shown. A strand of RNA is similar, except the sugar is ribose and uracil is substituted for thymine.
Picture Stats: Views: 1415 Filesize: 102.88kB Height: 1148 Width: 850 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=213 Keywords: Structure of a DNA strand |