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In 1953 in a Cambridge University laboratory, Francis Crick and James Watson discovered DNA, changing the face of biological science in the process. They found a twisted strand of deoxyribonucleic acid, intertwined in such a way that they could pull apart, replicate themselves, and pass their genetic code from old cells to new. The coin's reverse design pays tribute to this 'double helix' structure and marks the 50th anniversary of the discovery.


2003 DNA Double Helix

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