The Molecule

The molecule In the autumn of 1951, James Watson (left) and Francis Crick (right) started carry on unravelling the structure of desoxyribonucleic acid. It was known at the time that DNA was present in the nucleus of every living cell, and that it had something to do with heridity, but without a knowledge of its structure little more could be understood about how it actually worked. They approached the problem with the corresponding methodology that had been pioneered by Linus Pauling, who after years of exhaustive take aim had earlier discovered that many proteins exhibited a helical structure.

Their labor movement was to devise a structure which would account for all the chemical substance and X-ray evidence, and at the same time be coherent with all the structural features of the units involved - such as the size and shape, bond angles and lengths, configurations and conformations. X-ray diffraction photographs of DNA fibres taken by Rosalind Franklin and Maurice Wilkins showed a distinctive X-shape, which was chara...If you want to get a full essay, score it on our website: Orderessay

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