This Week in Science

In this week's Science, researchers from the University of Texas Southwestern Medical Center show how the gene-editing technology CRISPR/Cas 9 can be used to prevent muscle degeneration in a mouse model of Duchenne muscular dystrophy. The investigators removed embryos from pregnant mutant mice, injected them with CRISPR molecules designed to target and correct the dystrophin mutation, and then transferred the embryos back into wild-type female mice.

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