On this day in 1953: the chemical structure of DNA was discovered

WORKING TOGETHER: James Watson, Francis Crick and Rosalind Franklin who discovered the structure of DNA together – HeraldScotland

CAIRO – February 28, 2022: On February 28, 1953, Cambridge University scientists James Watson and Francis Crick determined the double helix structure of DNA, the molecule that contains human genes.

Molecular biologists were greatly helped by the work of another DNA researcher, Rosalind Franklin, although she was not included in the announcement, nor implicated in the ensuing Nobel Prize for it.

Although DNA – short for deoxyribonucleic acid – was discovered in 1869, its critical role in determining genetic inheritance was not proven until 1943.

In the early 1950s, Watson and Crick were just two of many scientists working to discover the structure of DNA.

California chemist Linus Pauling suggested an incorrect model in early 1953, prompting Watson and Crick to try to beat Pauling at his own game.