Jennifer Doudna and Emmanuelle Charpentier have been awarded the Nobel prize in Chemistry for their revolutionary work on 'gene scissors' that can edit DNA.
CRISPR is a gene editing tool that can create permanent changes in the human genome.
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Four months ago a researcher claimed he had used the tool CRISPR to edit the genomes of twin girls. Now prominent researchers and ethicists are calling for a temporary halt to this sort of work.
Editing just one gene in an embryo could create many unanticipated side-effects once the baby is born.
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Genome editing technology has, and will always have, limits. Limits that are related not to the technology itself but to the intrinsic complexity of the human genome.
A Chinese scientist claims he edited the DNA of twin girls during an in vitro fertilization procedure.
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A Chinese scientist has revealed he edited the DNA of twin girls born through in vitro fertilization. These girls are designed to be resistant to HIV. Is the edit a medical necessity or an enhancement?