character: Francis Crick
topic: DNA Structure and Function
grade: 9
subject: Science
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character: James Watson
topic: Double Helix Model of DNA
grade: 9
subject: Science
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character: Rosalind Franklin
topic: X-ray Crystallography of DNA
grade: 9
subject: Science
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character: Maurice Wilkins
topic: DNA Molecular Structure
grade: 9
subject: Science
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