Scientists / Biology & Medicine
ロザリンド・フランクリン
GB 1920-07-25 ~ 1958-04-16
Twentieth-century British physical chemist and crystallographer
Produced Photo 51, the X-ray image essential to solving the DNA double helix
A symbol of the need for fair attribution and visibility of women in science
British physical chemist born in 1920 whose X-ray image Photo 51 was essential to solving the DNA structure. Her contribution went long unrecognized; she died of cancer at thirty-seven.
What You Can Learn
Franklin's case raises urgent questions about intellectual-property ethics and fair attribution in collaborative research, issues amplified in the era of open science. Her experience illustrates how lack of inclusion and diversity stunts the recognition of talent. And her consistent deepening of X-ray crystallography across coal, DNA, and viruses models the strategy of expanding the application range of a core technology.
Words That Resonate
Science and everyday life cannot and should not be separated.
I see no reason to believe that a creator of protoplasm or primeval matter, if such there be, has any reason to be interested in our insignificant race in a tiny corner of the universe.
You look at science (or at least talk of it) as some sort of demoralizing invention of man, something apart from real life. But science and everyday life cannot and should not be separated.
Life & Legacy
Rosalind Franklin produced the experimental evidence without which the double-helix model of DNA could not have been built, yet her contribution was for decades inadequately acknowledged. Photo 51, her X-ray diffraction image of B-form DNA, provided the critical structural parameters that Watson and Crick used to construct their model.
Born in 1920 into a prominent London banking family, she studied natural sciences at Cambridge and earned her doctorate in 1945 on the microstructure of coal and graphite. From 1947 to 1950 she refined her X-ray crystallography skills at the Laboratoire Central des Services Chimiques in Paris, gaining an international reputation for technical precision.
In 1951 she joined King's College London to work on DNA structure. Her relationship with Maurice Wilkins was strained from the outset by unclear role divisions and the male-dominated culture of the college. Working independently, she obtained the exceptionally clear Photo 51 in May 1952, which revealed helical geometry, pitch, diameter, and repeat distances.
In early 1953 Wilkins showed Photo 51 to James Watson without Franklin's knowledge. Watson and Crick used the photograph and quantitative data from Franklin's reports to build their double-helix model, published in Nature in April 1953. Franklin's own data paper appeared in the same issue but received far less attention.
She moved to Birkbeck College and produced distinguished work on the structure of tobacco mosaic virus. Diagnosed with ovarian cancer in 1956, she continued researching until her death on 16 April 1958 at age thirty-seven.
In 1962 Watson, Crick, and Wilkins shared the Nobel Prize; Franklin, having died, was ineligible. Watson's 1968 memoir The Double Helix drew criticism for its dismissive portrayal of her. Her case has since become central to debates about fair attribution and women's visibility in science.
Expert Perspective
Among scientists, Franklin is recognized as a pioneering X-ray crystallographer whose experimental data was indispensable to solving the DNA structure. Photo 51 is arguably the single most important piece of experimental evidence in molecular biology. The long failure to credit her properly is the field's most discussed case of attribution injustice and gender bias. Her TMV work further attests to her standing as a first-rate experimentalist.