A Crispr Cow Is Born. It’s Definitely a Boy

UC Davis scientists spent years editing a sex-determining gene into bovine embryos using Crispr. In April, Cosmo arrived—and his DNA reveals how far the field has to go.

A Crispr Cow Is Born. It’s Definitely a Boy
UC Davis scientists spent years editing a sex-determining gene into bovine embryos using Crispr. In April, Cosmo arrived—and his DNA reveals how far the field has to go.
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