AP BIOLOGY

Detailed explanation-1: -Maurice Wilkins and Rosalind Franklin had obtained high-resolution X-ray images of DNA fibers that suggested a helical, corkscrew-like shape.

Detailed explanation-2: -The discovery of the structure of DNA in 1953 was made possible by Dr Rosalind Franklin’s X-ray diffraction work at King’s. Her creation of the famous Photo 51 demonstrated the double-helix structure of deoxyribonucleic acid: the molecule containing the genetic instructions for the development of all living organisms.

Detailed explanation-3: -Five Facts about Rosalind Franklin Franklin used x-ray crystallography to investigate the physical chemistry of carbon and coal. Her findings enabled her to predict how different types of coal would perform as vital fuels for the war effort.

Detailed explanation-4: -At King’s College in London, Rosalind Franklin and Maurice Wilkins were studying DNA. Wilkins and Franklin used X-ray diffraction as their main tool–beaming X-rays through the molecule yielded a shadow picture of the molecule’s structure, by how the X-rays bounced off its component parts.

Detailed explanation-5: -This X-ray diffraction picture of a DNA molecule was Watson’s inspiration (the pattern was clearly a helix). Using Franklin’s photograph and their own data, Watson and Crick created their famous DNA model.