It has been nearly 60 years since a pair of young scientists made a discovery that dramatically improved our understanding of genetics.
The double-helix structure of DNA was revealed by Francis Crick and James Watson in Cambridge University in 1953.
Now a detailed letter Crick wrote to his son soon afterwards is going up for auction, with proceeds going to research.
Al Jazeera's Joanna Blundell reports.
Source: Al Jazeera