character: Barbara McClintock
topic: Genetic Variation in Maize
grade: 10
subject: Biology
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character: Gregor Mendel
topic: Inheritance of Traits
grade: 10
subject: Biology
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character: James Watson
topic: Discovery of DNA Structure
grade: 10
subject: Biology
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character: Charles Darwin
topic: Natural Selection and Variation
grade: 10
subject: Biology
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