Cas9

Cas9 is a protein used in genetic engineering, particularly in the CRISPR technology. It acts like a pair of molecular scissors that can cut DNA at specific locations. Scientists guide Cas9 to the exact spot they want to edit by using a small RNA sequence that matches the target DNA. Once Cas9 cuts the DNA, the cell's natural repair mechanisms can either disable a gene or insert new genetic material. This powerful technique allows researchers to study genes, develop new therapies, and even create genetically modified organisms with precision and efficiency.