NEET BIOLOGY

Detailed explanation-1: -Taken in 1952, this image is the first X-ray picture of DNA, which led to the discovery of its molecular structure by Watson and Crick . Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule.

Detailed explanation-2: -She is best known for an X-ray diffraction image that she and her graduate student Raymond Gosling published in 19531, which was key to the determination of the DNA double helix. But Franklin’s remarkable work on DNA amounts to a fraction of her record and legacy.

Detailed explanation-3: -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-4: -After joining King’s College London in 1951 as a research associate, Franklin discovered the key properties of DNA, which eventually facilitated the correct description of the double helix structure of DNA.