PremiumCarl ZimmerNew York Times·5 Jun, 2026 01:26 AM8 mins to readResearchers altered genes that influence levels of LDL cholesterol and hemoglobin in the blood. Photo / Getty ImagesResearchers relied on a newer gene-editing technique that may make it possible to engineer embryos, a prospect that has long alarmed bioethicists.Scientists at Columbia University have edited the DNA of early human embryos with unprecedented accuracy, an achievement that could open the way to babies engineered with particular characteristics.
In a first, scientists precisely edit human embryo genes
New York Times: A new gene-editing technique raises hopes and fears over designer babies.
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