Bioscience:Secrets of the Sequence(9)
At present there are two kinds of cloning — reproductive cloning and therapeutic cloning. Human cloning is the laboratory production of individuals who are genetic copies of other human beings. All the genetic information necessary to produce a human being is contained in the nucleus of a person's cells. Remove the nucleus from a human egg, and INSERT a nucleus from another human being, and theory says when that egg is implanted in a woman, it will develop into a duplicate of the donor — a clone.
- Added:2006
- Country:America
- Duration:30
- Time of update:2011/8/17 15:13:10