character: Watson and Crick
topic: Discovery of the DNA Double Helix
grade: 9
subject: Biology
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character: Rosalind Franklin
topic: X-ray Diffraction Images of DNA
grade: 9
subject: Biology
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character: James D. Watson
topic: Structure of DNA and Base Pairing
grade: 9
subject: Biology
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character: Francis Crick
topic: Implications of the Double Helix Structure in Genetics
grade: 9
subject: Biology
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