Watson and Crick Discover DNA's Structure: The Double Helix
James Watson and Francis Crick unveiled a double-helix model of DNA based on Rosalind Franklin's X-ray diffraction data, instantly unlocking the mechanism for how life stores and replicates genetic information. This breakthrough birthed molecular biology by revealing that DNA bases pair in specific triplets, a discovery that allowed scientists to decipher the entire genetic code within just five years.
February 28, 1953
73 years ago
Key Figures & Places
What Else Happened on February 28
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