James Watson & Francis Crick – Discovery of the DNA Double Helix
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James Watson & Francis Crick – Discovery of the DNA Double Helix
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This episode explores the groundbreaking discovery of the double helix structure of DNA by James Watson and Francis Crick in 1953. Working at Cambridge University, the duo used model-building and key X-ray diffraction data—particularly Photo 51 by Rosalind Franklin—to determine that DNA consists of two helical strands connected by paired nitrogen bases (A-T and G-C). This elegant structure immediately explained how genetic information is stored and replicated. Their discovery revolutionized biology and laid the foundation for modern genetics, molecular biology, forensic science, and biotechnology. Watson, Crick, and Maurice Wilkins received the Nobel Prize in 1962, though Franklin’s vital contributions were only fully acknowledged later, raising ongoing debates about recognition in science. The double helix remains one of the most iconic scientific discoveries in history—unlocking the very code of life.