An illustration of the CRISPR-Cas9 gene editing complex. The Cas9 nuclease protein (white and green) uses a guide RNA (red) sequence to cut DNA (blue) at a complementary site.
Credit: Molekull/Science Photo Library/Getty
Charles Darwin had no idea what a gene was. If we dropped the father of evolution into 2019, the idea that humans can willfully alter the genes of an entire species would surely seem like wizardry to him.
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