In May 1952, Rosalind Franklin and her graduate student Raymond Gosling exposed a hydrated DNA fibre to X-rays for 62 hours in a King's College basement and produced Photo 51, an image so crisp the dark cross at its centre showed the molecule was helical before Watson and Crick had drawn a single line.
Summary
In May 1952, Rosalind Franklin and Raymond Gosling exposed a hydrated DNA fibre to X-rays for 62 hours at King's College London. The resulting image, Photo 51, showed the molecule was helical a full year before Watson and Crick built their model.
Continue at the source
Read the complete news report directly at ScienceBlog.com.
Read the full report ↗