. Biological structure and function; proceedings. Biochemistry; Cytology. 20 M. H. F. WILKINS The Watson-Crick base-pairing schemes and possible alternatives The Watson-Crick scheme [8, 9, 10] is shown in Fig. 5, It should be noted that the glycosidic hnks in both base-pairs are arranged symmet- rically about a line (dyad axis) in the plane of the diagram and passing. Fig. 6. The Donohue base-pairs [10]. through the helix axis. As a result the molecule has the same appearance (apart from the sequence of bases) when turned upside down, when rotated 180° about the dyad axis. In both pairs t


. Biological structure and function; proceedings. Biochemistry; Cytology. 20 M. H. F. WILKINS The Watson-Crick base-pairing schemes and possible alternatives The Watson-Crick scheme [8, 9, 10] is shown in Fig. 5, It should be noted that the glycosidic hnks in both base-pairs are arranged symmet- rically about a line (dyad axis) in the plane of the diagram and passing. Fig. 6. The Donohue base-pairs [10]. through the helix axis. As a result the molecule has the same appearance (apart from the sequence of bases) when turned upside down, when rotated 180° about the dyad axis. In both pairs the separation of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original IUB/IUBS International Symposium (1st : 1960 : Stockholm); International Union of Biochemistry; International Union of Biological Sciences; Goodwin, T. W. (Trevor Walworth); Lindberg, Olov, 1914-. London, New York, Academic Press


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