Figure 3.

Photo 51. Rosalind Franklin's Photo 51 of 'B' form DNA, which was the highest quality X-ray diffraction pattern of DNA at the time, and an important contribution to Watson and Crick's work on the double helix. © Nature Publishing Group; reproduced with permission.

Attar Genome Biology 2013 14:402   doi:10.1186/gb-2013-14-4-402
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