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Watson is a U.S. molecular biologist, geneticist and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953 with Francis Crick. In 1998, the Modern Library placed The Double Helix at number 7 on its list of the 100 best nonfiction books of the 20th century.
Watson and Crick used many aluminium templates like this one, which is the single base Adenine (A), to build a physical model of DNA in 1953. When Watson and Crick produced their double helix model of DNA, it was known that most of the specialized features of the many different life forms on Earth are made possible by proteins.
James Dewey Watson (born April 6, 1928) is an American molecular biologist, geneticist, and zoologist.In 1953, he co-authored with Francis Crick the academic paper in Nature proposing the double helix structure of the DNA molecule. [10]
James D. Watson; The Double Helix: A Personal Account of the Discovery of the Structure of DNA, Atheneum, 1980, ISBN 0-689-70602-2 (first published in 1968) is a very readable firsthand account of the research by Crick and Watson. The book also formed the basis of the award-winning television dramatisation Life Story by BBC Horizon (also ...
The double-helix model of DNA structure was first published in the journal Nature by James Watson and Francis Crick in 1953, [6] (X,Y,Z coordinates in 1954 [7]) based on the work of Rosalind Franklin and her student Raymond Gosling, who took the crucial X-ray diffraction image of DNA labeled as "Photo 51", [8] [9] and Maurice Wilkins, Alexander Stokes, and Herbert Wilson, [10] and base-pairing ...
The first reports of a double helix molecular model of B-DNA structure were made by James Watson and Francis Crick in 1953. [5] [6] That same year, Maurice F. Wilkins, A. Stokes and H.R. Wilson, reported the first X-ray patterns of in vivo B-DNA in partially oriented salmon sperm heads. [7]
Watson and Crick's calculations from Gosling and Franklin's photography gave crucial parameters for the size and structure of the helix. [ 16 ] Photo 51 became a crucial data source [ 17 ] that led to the development of the DNA model and confirmed the prior postulated double helical structure of DNA, which were presented in the series of three ...
James D. Watson and Francis Crick described this structure as a double helix with a radius of 10 Å and pitch of 34 Å, making one complete turn about its axis every 10 bp of sequence. [3] The double helix makes one complete turn about its axis every 10.4–10.5 base pairs in solution.
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