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The Discovery of the Structure of Dna

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The discovery of the structure of DNA

James Watson, Francis Crick, Maurice Wilkins, Rosalind Franklin
What did they discover about DNA?
James Watson, along with Francis Crick, studied the molecular structure of DNA that had been extracted from cells and showed how it could serve as the chemical basis of inheritance. Although it is commonly known that everything they "discovered" they stole from Rosalind Franklin, who proceeded to obligingly die. That said they're incorrectly famous for discovering that DNA is composed of sequences of purines and pyramidines hydrogen-bonded together and held in place by two sugar-phosphate strands that form a double helix due to more hydrogen bonding.
Maurice Wilkins is not credited for the actual discovery of the structure of DNA rather that distinction goes to James Watson and Francis Crick and is known as the Watson-Crick model. Wilkins did share in the Nobel prize because his work in spectroscopic studies on nucleic acids led to the use of X-ray crystallography to define the Watson-Crick model of DNA.
Rosalind Franklin discovered the molecular structures of DNA, RNA, viruses, coal and graphite. She was a British biophysicist and X-ray crystallographer who was best known for her work on the X-ray diffraction images of DNA which led to discovery of DNA double helix. Rosalind Franklin's critical contributions to the Crick and Watson model include an X-ray photograph of B-DNA (called photograph 51), that was briefly shown to James Watson by Maurice Wilkins in January 1953. From this x-ray photograph Watson and Crick were able to determine that the structure of DNA was helical. When? * 1869 was a landmark year in genetic research; because it was the year in which Swiss physiological chemist Friedrich Miescher first identified what he called “nuclein” inside the nuclei of human white blood cells * Although 1953 was...

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