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Cloning. Cloning Cloning is the process of creating a genetic duplicate of an
individual. ... Imagine a world in which cloning is permitted and practiced. ...
The Mystery of Cloning. Cloning Cloning humans is banned in 23 countries. ... Other
advocates of human cloning believe that cloning involves risks of abnormalities. ...
Human Cloning. Human Cloning Human cloning is one of the most talked about issues
of today. ... In 1903 cloning was introduced, by cloning plants. ...
cloning. ... The beginning of cloning started from the structure known as DNA. DNA is
the heredity function of beginning humans and all living organisms. ...
The Two Faces of Human Cloning. The Two Faces ... of cloning humans. President Bush
strongly supports legislation banning all human cloning. ...
Submitted by sumit_rai on March 12, 2005
Category: Social Issues
Words: 966 | Pages: 4
Views: 346
Popularity Rank: 29,222
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Today's technology develops so quickly that many impossible things become true; the cloning technology is the example. What is cloning? Cloning is a process used to create an exact copy of a mammal by using the complete genetic material of a regular body cell. Different from the common propagate, cloning need only one cell and without sex. In 1997, the great news shocked the whole world that the British scientists created a lamp named Dolly from a single cell, miraculously; the cell had been taken from the udder of adult sheep, which show the first cloning experiment was successful.
The history of cloning
About the cloning history, we trace back to 400 million years BC, the plants could clone themselves but not to long. The human found the cloning 200 years ago, the first person who did the cloning experiment is a German biologist named Han Spermann, he uses the egg white to clone chicken in 1938 but it was failed. Until 1981, Kal Illmensee and Peter Hoppe report that they clone normal mice and embryo cell; it was a huge progress of the cloning history. After 2 years, the embryologists in UAS first cloned the human's cells; they put 32 cells into a surrogate mother, and then have cloned 4 extra same cells. In 1997, Ian Wilmut and his colleague Keith Campbell cloned a new adult sheep called Dolly. (Will, April 2002) So human spends long time on cloning research.
The process of cloning
The cloning has two main parts, one is the plant cloning and the other is the animal cloning. One type of plant cloning naturally occurs when a plant grows a runner. The runner grows horizontally across the ground forming a carbon copy of that same plant at the end. Eventually the runner dies and the daughter plant is separated from the mother plant. Another is when you cut a branch or leaf off of a plant and plant it. It will grow another identical plant. That method is called a cutting. Such as stolon, it is a weak branch of a plant, when...
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