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Cloning 8 - School Essays

Cloning 8

Cloning Cloning is the production of a group of genetically identical cells or organisms, all descended from a single individual. The members of a clone have precisely the same characteristics, except where mutation and environmentally caused developmental variation have occurred. The DNA is precisley the same and they are only differentiated by their experiences in which dictate their personality. There are some types of natural cloning that nature displays. Some animals have tremendous powers of Regeneration. If the body of certain starfishes is cut up into its five arms, each arm will regenerate a complete individual. Another type of asexual reproduction found in all animals, human ...

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where they produce complete plants. Grafting is another method of cloning used in Horticulture. Matching cuts are made in the stems of two plants, which are then fitted together so that their transport systems are in contact. The wounded area heals, and the two stems become a single physiological unit. All the McIntosh apple trees now in use and many other fruit varieties have been derived by grafting from single ancestral trees. "Nuclear transplantation," in which nuclei from cells of one individual are transferred to unfertilized eggs whose nuclei have been removed, is one method of artificial cloning in animals. All the transplanted nuclei are generally identical, and therefore the resultant individuals constitute clones. Great concern has been voiced over the use of Genetic Engineering for humans and animals. One concern is that transgenic animals carry pathogens of their own that may be transferred to humans with unknown consequences. The 1993 cloning of nonviable human ...

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PAPER DETAILS

Added: 9/4/2007 06:08:50 PM
Category: Science & Nature
Type: Premium Paper
Words: 1212
Pages: 5

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