Genetic Engineering: Humans Should Not Play God Essay

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Genetic engineering techniques should not be used to custom tailor children. It is morally wrong because it overrides natural selection. Humans should not have the right to play God. It is also unfair for those who are born naturally. Instead of allowing nature to decide, humans might choose what their descendants will be like. Nature alone should be the judge of one's skin color and other features. Genetic engineering should only be used for medical purposes. Otherwise, it is unfair to those who do not have access to these procedures, while genetically designed people will have an advantage over those who relied solely on nature. Thus, certain forms of genetic engineering should not be permitted.

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The eggs are then removed and placed into a special medium that promotes growth. Forty hours later, if the eggs have been properly fertilized and developed, the embryos are transferred to the mother's uterus. Usually multiple eggs are inserted to increase the likelihood of pregnancy. If, however, more than four embryos develop, the donor is given the option of cryopreserving1 the embryos left over. This lessens the risk of multiple gestations (twins, triplets etc.) After a single IVF cycle, the probability of pregnancy is about twenty percent greater.

IVF, has been used on animals by farmers for a long time to yield better products. It was used successfully on humans for the first time in 1978.

Another genetic engineering technique used on humans is called gene therapy. Gene therapy is based on recombinant DNA (deoxyribonucleic acid), also known as gene splicing. In this technique, the genes of one organism are introduced to another organism. This alters the genetic structure of the organism, thus altering its traits. These changes, however, will not be passed on to future generations because the sperm or eggs of the organism are not affected (Levine).

Gene therapy is currently used to correct genetic diseases. These diseases are caused either by inherited defective genes or by miscoded genes, which are generally created during cell growth and division (Blaese). Gene therapy works by
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