In vitro is an alternative that has awaken fierce discussion between its opponents and supporters. It is implied by the fact that for great number of people it is the only way to become a parent and have a child that would also have some elements in common with us. On the other side, such a solution is referred to miscellaneous moral doubts, as inter alia in order to develop this alternative plenty fertilized egg cells have been destroyed. Even though there is another discussion in terms of from which moment we may talk about new human being, we should not forget that improvement of this method has improved the way people treat life.