For example, until very recently, the insulin medicine that doctors give to diabetics was derived from pigs, while human-derived hormones could only be produced from cadavers. Today, thanks to genetics, insulin and many other drugs are obtained from specially modified bacteria, that is, from transgenic bacteria. Again, for example, doctors no longer have to treat all cancer patients the same way. Because, thanks to the point reached by genetic technologies today, various cancer types can be examined in terms of gene mutations and treated with personalized methods according to the mutation types. For this, it is sufficient to have a mutation test. Afterwards, it is seen that the survival rates in the treatments increase thanks to the treatment process specially planned for each patient. In the near future, with the innovations that gene science has brought to the medical world, medicine will have reached a level that will not only manage people's diseases but also their health.