Cloning

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genetic engeneering, mice, cows, identic, medicine, Referat, Hausaufgabe, Cloning
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Referat
Cloning Index How Cloning Works: Cloning is the process of making a genetically identical organism through nonsexual means. It has been used for many years to produce plants (even growing a plant from a cutting is a type of cloning). Animal cloning has been the subject of scientific experiments for years, but garnered little attention until the birth of the first cloned organism in 1997, a sheep named Dolly. Since Dolly, several scientists have cloned other animals, including cows and mice. The recent success in cloning animals has sparked fierce debates among scientists, politicians and the general public about the use and morality of cloning plants, animals and possibly humans. It is unfortunate that the term cloning refers to three very different procedures with three very different goals. It is also unfortunate that the first thought many people have when they hear the term is of horror movies which have showed the creation of human monsters or of armies of superhuman soldiers. Reality of cloning is very different. Embryo cloning: This is a medical technique which produces identical twins or triplets. It duplicates the process that nature uses to produce twins or triplets. One or more cells are removed from a fertilized embryo and encouraged to develop into one or more duplicate embryos. Twins or triplets are formed, with identical DNA. This has been done for many years on various species of animals; only very limited experimentation has been done on humans. Adult DNA ...

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