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We’ve been using CRISPR for years – now we know how it really works

The CRISPR gene editing complexCARLOS CLARIVAN/SCIENCE PHOTO LIBRARY By Michael Le Page A storm of criticism met the claimed creation of the first genome-edited children in China last month. One reason is that the twin girls have unpredicted new mutations whose effects are unknown. But it now appears there’s a really easy way to ensure… Read More »