![Use of tRNA-gRNA arrays to disrupt production of a protein in a specific tissue](https://www2.mrc-lmb.cam.ac.uk/wordpress/wp-content/uploads/Bullock_Insight1-150x150.png)
The ability of scientists to create changes in gene sequences has improved dramatically in recent years with the emergence of a new method, dubbed ‘CRISPR’. This ‘genome editing’ technology is of great interest due to the wide range of possible applications. CRISPR is already commonly used in fundamental research to study the function of specific genes in either cultured cells or whole animal models of human biology.