Abstract
Cloning research caught a great deal of attention when Dolly the sheep was born (§4).
While some fear surrounded the attainment (§§14-15), Wilmutʼs research itself has grown
well, providing a less vicious manner to gain ES cells (§12).
In this article, we review the progress of cloning research along with the concern of
medical circles about its application to reproductive cloning, that is to say, making replicas
of human beings (§§16-21).
Note that all the content is ascribed to the author alone, not to Musashino University.