character: George Gey
topic: Development of HeLa Cells
grade: 12
subject: Biology
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character: Henrietta Lacks
topic: Origin of HeLa Cells
grade: 12
subject: Biology
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character: Culture Techniques
topic: Tissue Culture Contributions
grade: 12
subject: Biology
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character: Scientific Research
topic: Impact of HeLa Cells on Biology
grade: 12
subject: Biology
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