a bone marrow transplant. A couple could implant a pre-
frozen embryos clone of their first child and produce an identical twin as a
guarantee for a perfect match...
February 23, 1997, Scottish researchers broke one of nature's
greatest laws by cloning a lamb from a single cell of an adult ewe. This
breakthrough opens the door...
from
mature single cells placed in a nutrient culture containing hormones. The first
cloning of animal cells took place in 1964. John B. Gurdon took the nuclei from...
you with a new organ or
maybe even a relatives organ that was naturally stronger (Cloning 1117). Someone
could replace their old organs with new ones and extend...
able to produce
ethanol from pentose sugars and hexose sugars.
July 1993: Morphine Receptor Cloned
In July, 1993, a team led by Dr. Lei Yu, associate professor...
The issues concerning human reproductive cloning are shrouded in controversy, perhaps overshadowing the true advantages of cloning technology. Therapeutic cloning, which is often misunderstood as reproductive cloning, is less controversial than the latter as it does not involve the creating of an individual being. Instead, vital stem cells are extracted from human embryos, in order to generate tissues and organs for transplant. The goal of this process is strictly to harvest stem cells, resulting in the creation of “cloned organs”, which can be used to treat heart disease, Alzheimer’s, and cancer. However, because reproductive cloning involves the creation of a specific being with specific characteristics it is much more controversial, and has much more at stake than therapeutic cloning. There are definitely advantages of reproductive cloning: individuals with fertility problems would be able to produce biologically related children, and couples who risk passing genetic disease to offspring would be able to have healthy children. However, cloning technology is still primitive, and although several attempts have yielded successful clones, human reproductive cloning should be temporarily banned because it is highly inefficient, extremely dangerous, and ethically irresponsible.
Although many mammalian species have been successfully cloned, cloning procedures are still primitive, and thus, are prone to failure. Certain species, including humans, are more resistant to somatic cell nuclear transfer than others are, and therefore have a lower success rate. Scottish scientists at the Roslin Institute went through 276 nuclear transfer procedures in order to produce Dolly the Sheep in 1997. Dr. Michael Soules, director of reproductive endocrinology at the University of Washington, claims, “It's the height of medical stupidity and arrogance to think you could successfully clone a human being today. . . concerns can be addressed when reproductive cloning has been shown to be...
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