(NPR) -It’s why gene drives are raising both high hopes and deep concern. Until now, scientists have generally tried to keep genetically engineered creatures from spreading their DNA — to prevent them from inadvertently damaging the natural world. But a gene drive is designed to spread — and to spread quickly. The technology is so powerful that Hammond and his colleagues are hopeful they can do something humanity has been trying to do for decades: Wipe out malaria.
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