character: James Watson
topic: Structure of DNA
grade: 11
subject: Biology
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character: Francis Crick
topic: Discovery of DNA Structure
grade: 11
subject: Biology
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character: Rosalind Franklin
topic: X-ray Crystallography of DNA
grade: 11
subject: Biology
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character: Avery MacLeod McCarty
topic: Experiments on Genetic Material
grade: 11
subject: Biology
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