Facing doubts, scientist submits gene-editing protocols

Chinese biologist Han Chunyu has provided his experimental data to Nature as requested to help peer researchers replicate his work, but the controversy has not gone away, according to the journal's website.

Meanwhile Han has been working to replicate his own work.

The incident now is evolving into a battle between the widely recognized gene editing tool CRISPR-Cas9 and a potentially better substitute called NgAgo, presented by Han, a geneticist at Hebei University of Science and Technology.