In recent again the ethical debate about preimplantation genetic diagnosis flared. They seem to have forgotten completely what conclusions they had already come so far and above all why. So now the alarm for the most essential point. Preimplantation diagnosis is only after artificial insemination available before the fertilized egg is inserted into the expectant mother. That is to say the name of the method. Artificial insemination is not always successful. Therefore, make several test batches of reproductive medicine. If the attempt is successful but then, are often the five clones of the desired child available to the expectant mother can be used. The clones be produced by the embryo is cut after the first cell divisions. To the stage of eight or sixteen cells, he survived without damage, and instead, two new embryos, the cell division are behind schedule. That harms none of the embryos, but there are definitely two human beings. Identical twins occur naturally, but in the same way! The clones increase the number of tests to the reproductive medicine has available. Even the artificial insemination was once controversial, because the reproductive medicine has to decide after a successful pregnancy, what with the remaining clones, who are also human embryos, occurred should. First of all, they are deep and with deep-frozen in liquid nitrogen. As long as they consist of only one or very few cells, they survive this
Some doctors would like to have the remaining embryos for research purposes. But because there are nunmal human embryos, including humans, and therefore was and is the unethical and is prohibited. For the same reason it has prohibited the embryos as waste disposed of. What to do with them is still a mystery. First it can be stored as nuclear waste, only more complex, perhaps at some point finally disposed of. For some clones would have a use, namely, by putting them on genetic Damage investigated. But research on human embryos should not take place yet? True, but there is a way around it. Namely the fact that the PGD would be allowed.
The embryo, which the mother is employed, can not be examined for genetic damage because the cell under investigation must be destroyed. But the embryo is still to be employed only in a cell, called the zygote. Put it thus, genetic studies on, they would have killed the human embryo is irrevocable even before a single finding may be obtained from the investigation. It can be deployed to the embryo So do not examine in this way. In preimplantation genetic diagnosis used a clone of the embryo, that is also a human embryo, a sibling of the child to be used. The killing and one concludes from the findings back to the genetic status of the embryo to be used. Because you must, then, to close on the genetic status of a person to kill another human being, therefore, the pre-implantation diagnosis considered unethical and prohibited. Now it is again questionable whether one man can kill with impunity! Perhaps it is even questionable whether one impunity for research purposes may kill people, and other reasons are already widely accepted.
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