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Franklin created famed 'Photo 51' after calculating key features of DNA's helix from an earlier image, study reveals

"Photo 51" was a cleaner version of an earlier X-ray image, "Photo 49," that Rosalind Franklin had already used to calculate key features of DNA, challenging long-held assumptions about her role in the discovery of the double helix.

Published Oct 12, 2026 · 12:30 PMOriginal source: Phys.org - latest science and technology news stories13 reads
"Photo 51" was a cleaner version of an earlier X-ray image, "Photo 49," that Rosalind Franklin had already used to calculate key features of DNA, challenging long-held assumptions about her role in the discovery of the double helix.
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