The bioethics of this novel are similar to the bioethics brought up today with such technologies as cloning and gene therapy. In the novel, Victor Frankenstein takes for himself the power to give life. With such technologies as I have mentioned, scientists are getting nearer to having the power to seriously change people's abilities.
In both cases, you can argue that scientists are going too far (or are in danger of doing so). These technologies raise many questions. For example, what are the ethics of giving a child genius level IQ because the child's parents want that?
This novel raises the question of how much scientists should tinker with the basic capabilities of mankind.