character: Rosalind Franklin
topic: Key contributions to DNA research
grade: 3
subject: Writing
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character: James Watson
topic: Discovery of DNA structure
grade: 3
subject: Writing
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character: Francis Crick
topic: Double Helix model of DNA
grade: 3
subject: Writing
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character: Maurice Wilkins
topic: X-ray crystallography in DNA research
grade: 3
subject: Writing
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