character: James Watson
topic: Discovery of DNA structure
grade: 11
subject: Science
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character: Francis Crick
topic: Contributions to DNA double helix model
grade: 11
subject: Science
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character: Rosalind Franklin
topic: X-ray crystallography and DNA structure
grade: 11
subject: Science
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character: Maurice Wilkins
topic: Collaboration on DNA research
grade: 11
subject: Science
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