Experts Are Calling for a Ban on Gene Editing of Human Embryos. Here’s Why They’re Worried

In November 2018, Chinese biophysicist Jiankui He stunned the world when he announced that he had used a controversial gene-editing technology, called CRISPR, to genetically alter the genes in embryos and give them immunity to HIV. The embryos were transferred to the woman who provided the eggs to create them, and twin girls were born.

In November 2018, Chinese biophysicist Jiankui He stunned the world when he announced that he had used a controversial gene-editing technology, called CRISPR, to genetically alter the genes in embryos and give them immunity to HIV. The embryos were transferred to the woman who provided the eggs to create them, and twin girls were born.