The article offers an analysis of approaches of different Christian confessions to understanding of the moral status of human embryo in the context of modern biomedical developments. It compares challenges faced by the proponents of each denominational position and their arguments. According to documents and papers of the theologians there are at least three specific positions in relation to moral status of early human embryo: conservative, liberal and indefinite. The author focuses on arguments of such liberal Protestant authors as T. Peters, R. Cole-Turner and J.