Genome-editing tool TALEN outperforms CRISPR-Cas9 in tightly packed DNA Jan 27, 2021 10:45 am by Diana YatesResearch Share on Facebook Tweet Email Images A broader selection of genome-editing tools is needed to target all parts of the genome, said Professor Huimin Zhao. 'CRISPR is a very powerful tool that led to a revolution in genetic engineering, but it still has some limitations.' Share on Facebook Tweet Email