Watson-Crick

Watson-Crick
Wat·son-Crick .wät-sən-'krik adj of or relating to the Watson-Crick model <the Watson-Crick helix>
Watson James Dewey (b 1928)
American molecular biologist. Watson is famous for his major role in the discovery of the molecular structure of DNA. In 1951 he began working with Francis Crick at Cambridge, England, learning X-ray diffraction techniques and studying the problem of DNA structure. In 1953 he realized that the essential DNA components-four organic bases-must be linked in definite pairs. This discovery was the key factor that enabled Watson and Crick to formulate a molecular model for DNA in which the organic base pairs are linked by hydrogen bonds to form the rungs of a flexible ladder spiraling in the form of a helix. In this model, DNA replicates itself by splitting lengthwise and reconstructing a double strand of DNA from each of the single strands. This was a major stepping-stone in understanding the process by which genetic material replicates.
Crick Francis Harry Compton (1916-2004)
British molecular biologist. Crick had a major role in the determination of the molecular structure of DNA, a discovery which is widely regarded as one of the most important of 20th-century biology. He joined the research staff at Cavendish Laboratories in Cambridge, England. By 1961 Crick demonstrated that each group of three bases on a single DNA strand designates the position of a specific amino acid on the polypeptide chain of a protein molecule. He also helped to determine the base triplets that code for each of the 20 amino acids normally found in proteins. Watson, Crick, and Maurice Wilkins were awarded the Nobel Prize for Physiology or Medicine in 1962.

Medical dictionary. 2011.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Watson-Crick — adjective Date: 1964 of or relating to the Watson Crick model < the Watson Crick helix > < the Watson Crick structure > < Watson Crick base pairs > …   New Collegiate Dictionary

  • watson-crick — ¦wätsənˈkrik, also ¦wȯt adjective Usage: usually capitalized W&C : of or relating to the Watson Crick model Watson Crick helix …   Useful english dictionary

  • Watson-Crick-Modell — Watson Crick Modell, 1953 von Francis Harry Crick und James Dewey Watson entwickeltes Modell der ⇒ DNA Doppelhelix, das durch experimentelle Befunde bestätigt wurde …   Deutsch wörterbuch der biologie

  • Watson-Crick's model — Watson Crick s model. См. модель двойной спирали ДНК. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Watson-Crick model — n a model of DNA structure in which the molecule is a cross linked double stranded helix, each strand is composed of alternating links of phosphate and deoxyribose, and the strands are cross linked by pairs of purine and pyrimidine bases… …   Medical dictionary

  • watson-crick model — noun Usage: usually capitalized W&C Etymology: after James D. Watson b1928 American biologist and Francis H.C. Crick b1916 English biologist : a model of DNA structure in which the molecule is a cross linked double stranded helix, each strand is… …   Useful english dictionary

  • Watson-Crick — James Dewey Watson og Francis Crick var de to forskere der i 1953 fremlagde teorien om hvordan DNA s dobbeltspiral er opbygget. I 1962 fik de Nobelprisen i fysiologi og medicin …   Danske encyklopædi

  • watson-crick — wat·son crick …   English syllables

  • Watson-Crick-Modell — Wat|son Crịck Mo|dell [ wɔtsn ; nach dem amer. Biochemiker J. D. Watson (*1928) u. dem brit. Biochemiker F. H. C. Crick (*1916)]: ↑ Doppelhelix. * * * Watson Crịck Modell   [ wɔtsn ], die von J. D. Watson und F. H. C. Crick 1953 entwickelte… …   Universal-Lexikon

  • Watson-Crick model — noun Etymology: J. D. Watson & F. H. C. Crick Date: 1958 a model of DNA structure in which the molecule is a cross linked double stranded helix, each strand is composed of alternating links of phosphate and deoxyribose, and the strands are cross… …   New Collegiate Dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”