character: Rosalind Franklin
topic: Contribution to understanding of DNA structure
grade: 9
subject: Biology
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character: James Watson
topic: Discovery of DNA double helix
grade: 9
subject: Biology
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character: Francis Crick
topic: DNA structure and molecular biology
grade: 9
subject: Biology
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character: Maurice Wilkins
topic: Role in DNA research and Nobel Prize
grade: 9
subject: Biology
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