Francis Crick

Francis Crick was a scientist who worked with James Watson. The two used x ray diffraction to study DNA. In April 1953, they published a paper of their discovery - a molecular structure of DNA based on all its known features - the double helix. Their model served to explain how DNA replicates and how hereditary information is coded on it. This set the stage for the rapid advances in molecular biology that continue to this day. The two scientists - with Maurice Wilkins - won the 1962 Nobel Prize in Medicine for their discovery of the structure of DNA.