Topics: Cloning, Genetics, Gene Pages: 3 (928 words) Published: May 5, 2014
The word cloning describes many different processes that can be use to make identical copies of existing organisms or object. The copied object has the same genetic makeup as the original, the copied material is a clone. Scientist have cloned many biological materials such as genes, cells, tissues, and whole organism like dolly the sheep. There is also natural clones, some plants and single celled organisms like bacteria make genetically identical off springs through a process called asexual reproduction. In asexual reproduction, a new organism is made from a copy of a single cell from the parent organism. Identical twins are also natural clones and they happen in humans and other animals. Twins are produced when a fertilized egg splits, creating two or more embryos that carry almost identical DNA. Identical twins have almost the same genetic makeup as each other, but they are genetically different from the parent.There are three different types of artificial cloning reproductive cloning, gene cloning and therapeutic cloning.Gene cloning makes copies of genes or parts of DNA. Reproductive cloning makes copies of whole animals. Therapeutic cloning makes embryonic stem cells for experiments aimed at creating tissues to replace injured or diseased tissues which is why I support this type of research. Gene cloning, also known as DNA cloning, is a very different process from reproductive and therapeutic cloning. Reproductive and therapeutic cloning have many of the same techniques, but are done for different purposes. Many people oppose to cloning & human cloning because when somatic cell nuclear transfer is use to clone the nucleus of an egg and all of it’s DNA is removed .In 1997 the United States president Bill Clinton challenged the techniques of human cloning such as somatic cell nuclear transfer, here is a simple and brief description: the nucleus and all DNA from a fertilized egg is removed and then the nucleus from the isolated somatic cell is transfer to the...
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