character: Francis Crick
topic: DNA Double Helix Model
grade: 11
subject: Biology
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character: James Watson
topic: Co-discoverer of DNA Structure
grade: 11
subject: Biology
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character: Rosalind Franklin
topic: X-ray Diffraction and DNA
grade: 11
subject: Biology
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character: Marsh Nirenberg
topic: Genetic Code and DNA
grade: 11
subject: Biology
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