Human Embryo Gets CRISPR Treatment

Researchers in a U.S. lab finally test the revolutionary gene-editing tool in human embryos.

In just a few short years, the gene-editing tool CRISPR-Cas9 has infiltrated biology labs around the world. This summer, scientists working in a U.S. lab announced they’d used CRISPR to modify viable human embryos, which were kept alive just a few days. The research is a first in the United States, though scientists in China have conducted similar experiments. This latest effort, led by researchers at Oregon Health and Science University, also succeeded in avoiding unintended effects &m…

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