character: James Watson
topic: DNA Structure
grade: 9
subject: Science
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character: Francis Crick
topic: Discovery of DNA Double Helix
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: Gregory Mendel
topic: Genetic Variation and Inheritance
grade: 9
subject: Science
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