character: Professor Emma Johnson
topic: The Role of DNA in Human Health
grade: 9
subject: Science
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character: Dr. Andrew Baker
topic: Genetics and Disease Prevention
grade: 9
subject: Science
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character: Ms. Sarah Thompson
topic: How DNA Affects Traits and Health
grade: 9
subject: Science
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character: Mr. David Lee
topic: The Basics of Genetic Testing
grade: 9
subject: Science
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