Genome editing (also called gene editing) refers to a group of technologies that give scientists the ability to make precise changes to an organism’s DNA. These technologies act like scissors, cutting the DNA at a specific spot. Scientists can then remove, add, or replace the DNA where it was cut. Several approaches to genome editing have been developed. Currently, the genome editing tool used most often is CRIPSR-Cas system, including CRISPR-Cas9 and CRISPR-Cas12.
National Human Genome Research Institute: What is genome editing?
U.S. National Library of Medicine (NLM) MedlinePlus: What are genome editing and CRISPR-Cas9?
NCATS Toolkit for Patient-Focused Therapy Development: Genetic Therapeutics
NCATS: Somatic Cell Genome Editing