The goals and purposes for cloning range from making copies of those that have deceased to better engineering the offspring in humans and animals. Cloning could also directly offer a means of curing diseases or a technique that could extend means to acquiring new data for the sciences of embryology and how organisms develop as a whole over time. Currently, the agricultural industry demands nuclear transfer to produce better livestock. Cloning could massively improve the agricultural industry as the technique of nuclear transfer improves. Currently, change in the phenotype of livestock is accomplished by bombarding embryos of livestock with genes that produce livestock with preferred traits. However, this technique is not efficient as only 5 percent of the offspring express the traits. Scientists can easily genetically alter adult cells. Thus, cloning from an adult cell would make it easier to alter the genetic material. The goal of transgenic livestock is to produce livestock with ideal characteristics for the agricultural industry and to be able to manufacture biological products such as proteins for humans. Farmers are attempting to produce transgenic livestock already, but not efficiently, due to the minimal ability to alter embryos genetically, as stated above. Researchers can harvest and grow adult cells in large amounts compared to embryos.
Scientists can then genetically alter these cells and find which ones did
transform and then clone only those cells. Scientists also ponder the idea
of cloning endangered species to increase their population. The possibilities
are endless. However, we are actually doing much of this research
for the improvement of life for humans. Scientists foresee the cloning
of pigs that will produce organs that will not be rejected by humans.
Also, mentioned earlier, livestock can produce biological proteins
helping people who have diseases including diabetes, Parkinson's, and Cystic
Fibrosis. Cloning also provides better research capabilities for finding
cures to many diseases. There are also possibilities that nuclear transfer
could provide benefits to those who would like children. For instance,
couples who are infertile, or have genetic disorders, could use cloning
to produce a child. Equally important, women who are single could have
a child using cloning instead of in-vitro fertilization or artificial insemination.
Nuclear transfer could also provide children who need organ transplants
to have a clone born to donate organs. Cloning could also provide a copy
of a
child for a couple whose child had died.