Scientists have used cloning techniques to create stems cells from adult skin cells. They got donated eggs from women, removed the DNA from the eggs, and injected the skin cells into the eggs. Creating cells from these created the pluripotent stem cells that matched the skin donor DNA. At this point they were able to do this to 77 eggs, creating 2 stem cells, a success rate of 2.5%. They could shake up the medical world by fixing that problem.