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