Moral principles differ among cultures, and, within cultures, among individuals.
This questions the need and possibility of regulating biotechnology on moral grounds. From this perspective, bioethics is put on the same footing with emotional or conservative resistance towards change. On the other hand, every individual has particular moral ideas about what is just or unjust which are not considered to be just a matter of feeling or taste. Because modern biotechnology, especially genetic engineering, gives humankind new tools to intervene in nature, people have asked questions as to how far humans ought to go in research and applications of modern biotechnology. Most of the discussion on bioethics and biotechnology, at least in the West, is in the context of the application of biotechnology on human reproduction, gene therapy, and prospecting DNA sequences.