Issues Regarding Animal Experimentation and Cloning Essay example
Animals may be used for experimentation to gain knowledge about human diseases and knowledge on how to cure them. Animals like mice and rats share physiological and generic similarities with humans. Animal experimentstion is helpful for elaborating medical science.
In the past years, scientists have been discovering how to clone animals. They tried their best to make this possible, but failed to do so. Until in the year 1996, Ian Wilmut, an English embryologist, together with Keith Campbell, cloned a sheep which was named Dolly.
Dolly was bred with a Welsh Mountain Ram and produced six lambs in total. Her first lamb was named Bonnie, then she produced twin lambs named Sally and Rosie, and she also gave birth to the …show more content…
These clones are easy to grow, but is not always true of multicellular organisms. Later on, the scientists proved that this activity was impossible after years of research. Until one time, in the year 1997, a Scottish scientist named Ian Wilmut announced that he had cloned a sheep, which is Dolly.
Researchers believed that cloned animals are not necessarily transgenic. “But they hope that cloning will enable them to make copies of transgenic animals that produce genetically engineered substances that will have medical or scientific value.” (Miller 333)
“Cloning may find wide use in medical and scientific research and even in helping to save endangered species.” (Miller 333) But this activity also raises ethical issues like the possibility that later someone may attempt to clone human beings.
There are different types of cloning.
The most known type of cloning is the DNA cloning. It is a set of laboratory methods that uses living cells to make many copies of specific DNA fragments.
In DNA cloning, an egg cell was removed from the ovary of an adult female donor, and its nucleus removed. The nucleus from an udder cell of another donor was inserted into the empty egg cell. The fused cell then began to develop