Rosalind Elsie Franklin is best known for her part in the discovery of the molecular structure of DNA. The British biophysicist and X-ray crystallographer worked on the X-ray diffraction images of DNA, which led to the discovery of the DNA double helix.
Francis Crick together with James Watson of the U. discovered the double helix structure of DNA.the genetic alphabet. "We have found the secret of life" was his dramatic pronouncement. 1916 - 2004 (See also James Watson, U.