character: Francis Crick
topic: Discovery of DNA Structure
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 Diffraction and DNA
grade: 9
subject: Science
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character: Gregor Mendel
topic: Foundations of Genetics
grade: 9
subject: Science
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