중앙데일리

Korea Clones World"s Second Human Embryo

Dec 14,1998
The world's second human embryo cloning experiment was successfully carried out by a Korean medical team.
Professor Lee Bo Yeon's team at the fertility clinic of the Kyunghee University Medical Center in Seoul announced on December 14 that they observed a cloned embryo divide into four separate cells, the process of mitosis.
The cloned embryo was obtained from an egg whose nucleus was removed and replaced with the nucleus of another woman.
The donor nucleus was taken from a granulocyte which encircles a woman's egg.
The egg was supplied by a woman in her thirties who visited the clinic because of an infertility problem.
If this cloned embryo is implanted in a womb, a cloned human being who is exactly the same as the granulocyte donor will be born, theoretically.
A nucleus from other cells could also, in theory, be transplanted into an egg, which would result in a new-born human being who is an exactly the same genetically as the nucleus donor.
After the successful completion of the experiment, the cloned embryo was destroyed.
The success of this experiment means that without sperm it is absolutely possible to 'produce' a human being.
This marks the second successful cloning of a human embryo following the success of a joint experiment carried out by Edinburgh University and the Roslin Institute of England announced in early December of this year.
The successful experiment is a landmark in science because it will allow a cure for infertility and the transplanting of internal organs more easily.
However, a moral and ethical controversy will rage at the same time.


dictionary dictionary | 프린트 메일로보내기 내블로그에 저장