Throughout history an idea has been conceived of creating a superhuman who would meet certain criterias in terms of appearance, intelligence and behaviour. Concepts such as eugenics and transhumanism emerged from these kind of ideas. Eugenics is a science which represents the enhancement of human genes, while transhumanism is an intellectual and cultural movement that supports the usage of different technologies and sciences in order to improve the mental and physical characteristics of humans. Francis Galton was the founder of eugenics. Eugenics used coercive methods such as euthanasia, sterilization and abortion, and most were applied in the USA and Germany. Advances in medicine and genetics show that it is possible to alter and modify the human body, therefore the question arises as to how and where to set a line over such experiments and how to preserve the human originality. The aim of this thesis is to review and analyze certain scientific literature, from the idea of superhuman to more recent issues in the field of genetics to show the development in medicine and genetics in order to improve and modify the human body, which lies in old myths about eternal life and phylosophycal ideas of superbeing. In the light of forensic genetics a new method will be evaluated, CRISPR/CAS9, which offers the possibility of gene modifications. This and similiar methods open up numerous questions about their regulation and application. Most of these questions are ethical in nature. Ethical questions and bioethical issues are related to far-reaching consequences of genetic engineering on civilization and the human race as a whole. The paper will highlight the dangers and risks of interfering in the human genom in order to raise awareness of the ethical responsibility of scientists towards future generations and their moral obligation to preserve the natural, biological and genetical heritage.