Photo 51 is the nickname given to an X-ray diffraction image of
DNADeoxyribonucleic acid is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms and some viruses. The main role of DNA molecules is the long-term storage of information...
taken by
Rosalind FranklinRosalind Elsie Franklin was an English biophysicist, physicist, chemist, biologist and X-ray crystallographer who made contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal and graphite. Franklin is best known for her work on the X-ray diffraction images of...
in 1952 that was critical evidence in identifying the structure of DNA. The photo was taken by Franklin while working at
King's College LondonKing's College London is a British higher education institution and co-founding constituent college of the University of London. Founded by King George IV and the Duke of Wellington in 1829, its royal charter is predated, in England, only by those of the Universities of Oxford and Cambridge...
in
Sir John RandallSir John Randall,FRSE, was a British physicist and biophysicist, credited with radical improvement of the cavity magnetron, an essential component of centimetric wavelength radar, which was one of the keys to the Allied victory in the Second World War. It is also the key component of microwave...
's group.
James D. WatsonJames Dewey Watson, born April 6, 1928, in Chicago, Illinois, is an American molecular biologist, best known as one of the two co-discoverers of the structure of DNA, with Francis Crick in 1953...
was shown the photo by
Maurice WilkinsMaurice Hugh Frederick Wilkins CBE FRS was an English molecular biologist, and Nobel Laureate who contributed research in the fields of phosphorescence, radar, isotope separation, and X-ray diffraction. He was most widely known for his work at King's College London on the structure of DNA...
, who had been given it without Franklin's approval. Along with
Francis CrickFrancis Harry Compton Crick OM FRS , was a British molecular biologist, physicist, and neuroscientist, and most noted for being one of two co-discoverers of the structure of the DNA molecule in 1953, together with James D. Watson. He, James D...
, the three men used it to jointly win the 1962
Nobel Prize in Physiology or MedicineThe Nobel Prize in Physiology or Medicine is awarded once a year by the Swedish Karolinska Institute. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in Physics, Chemistry, Literature, Peace, and Physiology or Medicine...
.
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Photo 51 is the nickname given to an X-ray diffraction image of
DNADeoxyribonucleic acid is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms and some viruses. The main role of DNA molecules is the long-term storage of information...
taken by
Rosalind FranklinRosalind Elsie Franklin was an English biophysicist, physicist, chemist, biologist and X-ray crystallographer who made contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal and graphite. Franklin is best known for her work on the X-ray diffraction images of...
in 1952 that was critical evidence in identifying the structure of DNA. The photo was taken by Franklin while working at
King's College LondonKing's College London is a British higher education institution and co-founding constituent college of the University of London. Founded by King George IV and the Duke of Wellington in 1829, its royal charter is predated, in England, only by those of the Universities of Oxford and Cambridge...
in
Sir John RandallSir John Randall,FRSE, was a British physicist and biophysicist, credited with radical improvement of the cavity magnetron, an essential component of centimetric wavelength radar, which was one of the keys to the Allied victory in the Second World War. It is also the key component of microwave...
's group.
James D. WatsonJames Dewey Watson, born April 6, 1928, in Chicago, Illinois, is an American molecular biologist, best known as one of the two co-discoverers of the structure of DNA, with Francis Crick in 1953...
was shown the photo by
Maurice WilkinsMaurice Hugh Frederick Wilkins CBE FRS was an English molecular biologist, and Nobel Laureate who contributed research in the fields of phosphorescence, radar, isotope separation, and X-ray diffraction. He was most widely known for his work at King's College London on the structure of DNA...
, who had been given it without Franklin's approval. Along with
Francis CrickFrancis Harry Compton Crick OM FRS , was a British molecular biologist, physicist, and neuroscientist, and most noted for being one of two co-discoverers of the structure of the DNA molecule in 1953, together with James D. Watson. He, James D...
, the three men used it to jointly win the 1962
Nobel Prize in Physiology or MedicineThe Nobel Prize in Physiology or Medicine is awarded once a year by the Swedish Karolinska Institute. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in Physics, Chemistry, Literature, Peace, and Physiology or Medicine...
. As the Nobel prize is not awarded posthumously, Franklin, whose breakthrough data was used to formulate the DNA structure, had died in 1958, thus was not eligible for nomination. It was the critical evidence that led to the confirmation of the postulated
double helicalIn geometry a double helix typically consists of two congruent helices with the same axis, differing by a translation along the axis, which may or may not be half-way....
structure of DNA, published during 1953 in a series of five articles in the journal
NatureNature is a prominent British scientific journal, first published on 4 November 1869. Most scientific journals are now highly specialized, and Nature is among the few journals that still publish original research articles across a wide range of scientific...
. Franklin and
Raymond GoslingRaymond Gosling is a distinguished scientist who worked with both Maurice Wilkins and Rosalind Franklin at King's College London in deducing the structure of DNA, under the direction of Sir John Randall. His other KCL colleagues included Alex Stokes and Herbert Wilson.-Early years:He was born in...
's own publication in the same issue of
Nature was the first publication of this more clarified X-ray image of DNA.