In clear terms, cloning is the process in which DNA of a female egg is replaced with different DNA from another cell. ... In this operation, the nucleus, which is the part of the cell that contains the DNA, is carefully removed from an unfertilized female egg and then replaced with the DNA from the cell of another person. The egg with the DNA from another person is then manipulated into believing it has been fertilized and is implanted into the womb of the mother just as is done in the process of in vitro fertilization. ... Simple tissues such as skin cells have already been cloned in labor...

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The types of gene therapy described so far , all have one thing in common which is, that the tissues being treated are somatic (somatic cells include all the cells of the body, except sperm cells and egg cells). ... To obtain correct gene action, it may be necessary to put it into the correct site on the host (or another organism, where a plant or animal that lives on or in another, lives) cell chromosome, or even to delete the defective gene , and the DNA can then be replicated (or to reproduce exactly an organism, genetic material, or a cell.)each time the host cell divided. .....

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• Grade Level: High School

This process consists of transplanting, or injecting, the nucleus of an adult body cell into an enucleated egg (oocyte) of another animal or person. ... They would then extract the nucleus by means of a fine needle from the eggs and put the recently vacant egg and the cloner's cells next to each other, and zap them with electricity. ... The aging of the cells is controlled by telomeres, the ends of chromosomes with repeating sequences of DNA on them, which become increasingly shorter each time the cell divides. ... Another theory of aging states that cells age through random damage to DNA...

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• Has Bibliography
• Grade Level: Undergraduate

In the basic definition, cloning is accomplished by removing the nucleus of a mature, unfertilized egg and replacing it with a specialized cell from an adult organism. ... Asexual reproduction can use any cloning method to produce children of the couple's own cells or even the cell replicates of another human being. ... Our DNA belongs only to us." ... With this gene type therapy, cells and embryos can be altered to prevent all sorts of life threatening diseases such as Huntington's disease, Cown's syndrome, and other genetic defects or flaws (Pence: Who's 105-6). ....

• Word Count: 1625
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• Grade Level: Undergraduate