Photograph by Rosalind Franklin - Essay Example

It also revealed that the backbone is on the external of a molecule, which contradicted Watson and Click's, models. The Watson and Click models showed the backbone of a molecule to be located at the centre and the bases diffusing outward. Watson and Crick recognized that if the commands were organized to point inward, then the DNA width could move toward 2.0-nm, as illustrated in Photo51 (Fitzgerald-Hayes & Reichman 22).

Rosalind Franklin discovered a specific well-determined X-ray diffraction pattern of a DNA fibre in Photo51. The DNA fibre was utilized to explain the 3.4Ᾱ distance between the 34Ᾱ periodicity of the helix and base pairs. In addition, photo51 revealed the actual dimensions of DNA diameter and molecule (Anholt & Mackay 51).

The photograph assisted Watson and Crick in concluding that the DNA molecules constitute two strands. The two strands are double helix that runs in opposite directions. The information was employed to construct a three-dimensional structure of DNA that was demonstrated to be accurate (Anholt & Mackay 51). In conclusion, the Photo51 opened a new window in scientific history by discovering the formation of DNA. The dimensions revealed in the photograph assisted in the accurate development of a DNA structure. The information disclosed the composition of the genetic code.