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Rosalind Franklin and DNA. New York: W.W. Norton and Company. ISBN 0-393-32044-8. 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
This is an accepted version of this page This is the latest accepted revision, reviewed on 12 December 2024. British X-ray crystallographer (1920–1958) This article is about the chemist. For the Mars rover named after her, see Rosalind Franklin (rover). Rosalind Franklin Franklin with a microscope in 1955 Born Rosalind Elsie Franklin (1920-07-25) 25 July 1920 Notting Hill, London, England ...
Rosalind Franklin joined King's College London in January 1951 to work on the crystallography of DNA. By the end of that year, she established two important facts: one is that phosphate groups, which are the molecular backbone for the nucleotide chains, lie on the outside (it was a general consensus at the time that they were at the inside); and the other is that DNA exists in two forms, a ...
He was the first scientist to isolate nucleic acid in 1869. Miescher also identified protamine and made several other discoveries. Miescher had isolated various phosphate-rich chemicals, which he called nuclein (now nucleic acids ), from the nuclei of white blood cells in Felix Hoppe-Seyler 's laboratory at the University of Tübingen , Germany ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 December 2024. American molecular biologist, geneticist, and zoologist (born 1928) For other people named James Watson, see James Watson (disambiguation). James Watson Watson in 2012 Born James Dewey Watson (1928-04-06) April 6, 1928 (age 96) Chicago, Illinois, U.S. Education University of Chicago (BS ...
In the 1940s and early 1950s, experiments pointed to DNA as the portion of chromosomes (and perhaps other nucleoproteins) that held genes. A focus on new model organisms such as viruses and bacteria, along with the discovery of the double helical structure of DNA in 1953, marked the transition to the era of molecular genetics.
By 1957 he has identified the first DNA polymerase. [5] The enzyme was limited, creating DNA in just one direction and requiring an existing primer to initiate copying of the template strand. Overall, the DNA replication process is surprisingly complex, requiring separate proteins to open the DNA helix, to keep it open, to create primers , to ...
The Path to The Double Helix: Discovery of DNA. MacMillan. ISBN 978-0-486-68117-7. (with foreword by Francis Crick; revised in 1994, with a 9-page postscript.) Watson, James D. (1980). The Double Helix: A Personal Account of the Discovery of the Structure of DNA. Atheneum. ISBN 978-0-689-70602-8. (first published in 1968) Wilkins, Maurice (2003).