How to turn specific genes on and off

Type 1 diabetes, rheumatoid arthritis, and cancer are just some of the disorders associated with specific genes not 'turning on' and 'turning off' as they should. By using new CRISPR/Cas9 genome editing technology researchers have described a new technique that scientists across the world can potentially use to explore novel ways of treating diseases associated with dysregulation in DNA methylation.

source https://www.sciencedaily.com/releases/2021/11/211109120326.htm