An early X-ray diffraction pattern of crystalline DNA. An example of an early X-ray diffraction pattern image of crystalline DNA taken by Ray Gosling at King's College. Later, the arrival of Rosalind Franklin spurred an improvement in the quality of these patterns. © Raymond Gosling; reproduced with permission.
Attar Genome Biology 2013 14:402 doi:10.1186/gb-2013-14-4-402