character: James Watson
topic: Discovery of DNA Structure
grade: 9
subject: Science
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character: Francis Crick
topic: Double Helix Model
grade: 9
subject: Science
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character: Rosalind Franklin
topic: DNA Structure and X-ray Diffraction
grade: 9
subject: Science
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character: Maurice Wilkins
topic: Contributions to DNA Research
grade: 9
subject: Science
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