Photo 51
An X-ray diffraction image of B-form DNA captured by Rosalind Franklin in 1952. The X-shaped diffraction pattern in the image directly revealed the helical characteristics of DNA and served as critical experimental evidence for establishing the DNA double helix model.
Timeline (last 90 days)
Rosalind Franklin was a trained X-ray crystallographer who captured "Photo 51" using X-ray diffraction technology.
"Photo 51" is a diffraction image of B-form DNA taken under high-humidity conditions; its "X"-shaped pattern reveals helical structural characteristics, and the layer line spacing reveals the pitch parameters of the helix.
In 1952, Maurice Wilkins showed "Photo 51" to visiting Watson without Franklin's permission.
All Facts (3)
Rosalind Franklin was a trained X-ray crystallographer who captured "Photo 51" using X-ray diffraction technology.
50%Unverified"Photo 51" is a diffraction image of B-form DNA taken under high-humidity conditions; its "X"-shaped pattern reveals helical structural characteristics, and the layer line spacing reveals the pitch parameters of the helix.
50%UnverifiedIn 1952, Maurice Wilkins showed "Photo 51" to visiting Watson without Franklin's permission.
50%