'Photo 51', taken in Rosalind Franklin's laboratory, was crucial to discovering the structure of DNA.
Why it is true
The image, made with X-rays in 1952 by the student Raymond Gosling under Franklin's supervision, showed an X-shaped pattern typical of a helix. It was shown to James Watson without her knowledge. Franklin died in 1958, and the 1962 Nobel Prize went to Watson, Crick and Wilkins.
Source: Nature (Franklin & Gosling, 1953)
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