character: Francis Crick
topic: Molecular Structure of DNA
grade: 11
subject: Chemistry
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character: James Watson
topic: Discovery of DNA's Double Helix
grade: 11
subject: Chemistry
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character: Rosalind Franklin
topic: X-ray Diffraction and DNA Structure
grade: 11
subject: Chemistry
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character: Erwin Chargaff
topic: Chargaff's Rules and DNA Composition
grade: 11
subject: Chemistry
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