DNA's structure (Franklin's X-ray data)
Who
Rosalind Franklin, a British Jewish chemist and X-ray crystallographer.
When
1952–1953
Where
London, United Kingdom
The double-helix structure of DNA, described by Watson and Crick in 1953, relied crucially on X-ray diffraction images produced by Rosalind Franklin, notably the famous 'Photo 51'. Franklin, a British scientist from a prominent Jewish family, generated the experimental data essential to the discovery.
Part of “The Gifts of the Jews” — verified Jewish contributions to the world, with sources.