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Cloning could be interesting for
breeding also but it is still too early for the statement.
Not only the technique is not very effective
but one should make sure that there is no genetic risk for the
line of descent. If improvements were made,
animal cloning could make
possible the use of best reproductive males, for example.
One can also hope to preserve, thanks to
cloning, animal races inside species. That was already carried
out for bovine and sheep. For the threatened species, to date it is only possible theoretically. To safeguard species in the process of disappearance, it would be necessary to have many ovocytes, and thus
enough females, to hope to create some embryos. People cannot take the risk to bring into play the last chances of
species without
being sure of the result. Progress of research will make it possible without doubt, but right now,
reproductive cloning cannot make miracle in this field.
The
main application of
therapeutic cloning relies on the
Clerc's Offices technique. Already cells of embryos resulting from abortions were grafted on
man, in particular to treat patients
affected by Parkinson disease. But these cells, recognized like aliens (
), are often rejected by the immune system of the
patient.
therapeutic cloning would consist in obtaining even bodies
by cloning cells from patients. Thus,
in need of more donor deaths: the grafts would be produced at will, and, resulting from the proper cells of the receiver, would have very few chances to be rejected.
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