Scientist have been researching new Medical Technology for “Gene Therapy” called CRISPR. The name CRISPR comes from repeat DNA sequences that were part of a complex system telling the scissors which part of the DNA to cut. This tool make precise changes to DNA in the cells of humans and other animals. A “guide RNA” tows the DNA-cutting enzyme Cas9 to specific genes, where it slices through the DNA. Those cuts are disabling genes or snipping out problem bits of DNA. We are now able to get rid of mutated genes and copy and paste new ones in, this can reduce the chance of mutations that cause Blindness, Stroke, Cancers, organ failures, that are genetically passed down from one generation to the next. The goal is for scientists to fix these problems before they even occur.