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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 proposing the double helix structure of the DNA molecule.
- Maurice Wilkins
Maurice Hugh Frederick Wilkins CBE FRS (15 December 1916 – 5...
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James Dewey Watson (born April 6, 1928) is an American molecular biologist and zoologist. Watson is of British ancestry . He is best known as one of the discoverers of the structure of DNA with Francis Crick in 1953.
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When did Watson discover the double helical structure of DNA?
When did Watson & Crick discover Deoxyribose Nucleic acid?
How did Watson find out if a gene is hereditary?
How did Watson get into molecular biology?
At least three DNA conformations are believed to be found in nature, A-DNA, B-DNA, and Z-DNA. The B form described by James Watson and Francis Crick is believed to predominate in cells. It is 23.7 Å wide and extends 34 Å per 10 bp of sequence. The double helix makes one complete turn about its axis every 10.4–10.5 base pairs in solution.
The "specific pairing" is a key feature of the Watson and Crick model of DNA, the pairing of nucleotide subunits. In DNA, the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. The A:T and C:G pairs are structurally similar.
Apr 15, 2024 · James Watson, American geneticist and biophysicist who played a crucial role in the discovery of the molecular structure of deoxyribonucleic acid (DNA), the substance that is the basis of heredity. For this accomplishment he was awarded a share of the 1962 Nobel Prize for Physiology or Medicine.
- The Editors of Encyclopaedia Britannica
The discovery in 1953 of the double helix, the twisted-ladder structure of deoxyribonucleic acid (DNA), by James Watson and Francis Crick marked a milestone in the history of science and gave rise to modern molecular biology, which is largely concerned with understanding how genes control the chemical processes within cells.
Oct 9, 2019 · On 25 April 1953, James Watson and Francis Crick announced 1 in Nature that they “wish to suggest” a structure for DNA. In an article of just over a page, with one diagram (Fig. 1), they...
