Edição de genes: 2 versões?

https://www.axios.com/successful-gene-editing-sheds-light-on-chromosomal-activity-76b49174-d60a-4738-8b45-1cb820867ff8.html

Citando:
"Why it matters: Cas9 is the first-discovered and most popular enzyme used by the CRISPR technology, but it has been known to have safety concerns. It sometimes unsafely targets the wrong gene or even deletes sections of the genome. However, Cas12a may be safer because it discriminates more strongly against mismatches than Cas9, the scientists say."