character: Francis Crick
topic: The Watson-Crick Model of DNA
grade: 6
subject: History
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character: James Watson
topic: The Discovery of DNA Structure
grade: 6
subject: History
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character: Rosalind Franklin
topic: Contributions to DNA Research
grade: 6
subject: History
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character: Maurice Wilkins
topic: DNA and X-ray Diffraction
grade: 6
subject: History
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