Biology Forum › Genetics › STRUCTURE OF DNA
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- August 11, 2006 at 12:29 pm #5462
Batt11Participantwhat method was used to discover DNA and how does it work
- August 11, 2006 at 12:55 pm #53109Batt11Participant
anyone
- August 11, 2006 at 1:23 pm #53115mithParticipant
lookup the dna article on wikipedia
- August 11, 2006 at 4:17 pm #53139Batt11Participant
yeah I have but I still cannot find the answer,
does any1 hav any ideas.
- August 11, 2006 at 4:50 pm #53143canalonParticipant
Search for Watson & Crick for the structure. Meselsohn (sp?) and Stahl for the replication.
- August 11, 2006 at 5:03 pm #53149Batt11Participant
I’ve looked 4 ages but still cannot find out what the method was called and am still open to all suggestions.
- August 11, 2006 at 7:49 pm #53162mithParticipant
In the 1950s, three groups made it their goal to determine the structure of DNA. The first group to start was at King’s College London and was led by Maurice Wilkins and was later joined by Rosalind Franklin. Another group consisting of Francis Crick and James D. Watson was at Cambridge. A third group was at Caltech and was led by Linus Pauling. Crick and Watson built physical models using metal rods and balls, in which they incorporated the known chemical structures of the nucleotides, as well as the known position of the linkages joining one nucleotide to the next along the polymer. At King’s College Maurice Wilkins and Rosalind Franklin examined X-ray diffraction patterns of DNA fibers. Of the three groups, only the London group was able to produce good quality diffraction patterns and thus produce sufficient quantitative data about the structure.
wikipedia quote…
- August 14, 2006 at 8:53 pm #53385bioradParticipant
The method was x-ray crystallography, and it was performed by Rosalind Franklin. Without her pictures, Watson and Crick would not have been able to determine the double helical structure of DNA
- August 15, 2006 at 1:18 am #53394trumanParticipant
why I can’t log in the correspongding website of wikipedia
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