During my interview with my grandmother I asked her what she thought of cloning. she responded by saying that it was not right and should be stopped.
on theother hand i have a different opinion. I think that cloning should be continuedand furhter researched for we might be able to have different organs andsubstances produced in these clones. Below is the step that were taken to clonethe adult sheep named Dolly. Part 1: An Improbable Goal Scientists hoped thatcloning healthy, mature sheep, rather than just creating lambs from embryoniccells, could produce a highly specialized sheep with large quantities ofproteins in its milk.
The proteins are believed to help treat diseases such asemphysema, hemophylia and cystic fibrosis. Part 2: The Perfect Timing For years,scientists could not synchronize the growth of the egg and the cell. If one wasoff- synch, abnormal chromosomes would soon transform in the nucleus and therebykill off the embryo. Dr. Wilmut achieved near perfection in the timing byputting the cells into hybernation; of the 277 eggs they began with, 247 livedthrough the process. Timing the growth in other species, however, has proved toscientists that cloning mature animals is extremely difficult; in the case ofmice, they’ve concluded it can’t be accomplished.
Part 3: Jump-start from a JoltThough it has become a standard procedure in cloning, scientists are not surewhy an electric pulse sent to the two cells causes them to meld together andactivates development in the egg. They are learning, however, the shock doesn’tfully mimic the activation process of a sperm, which could explain why just 29of the remaining 247 cells live longer than six days. Part 4: SurrogateMotherhood Despite the fact that the newly formed embryo is transplanted intothe uterus of another ewe, scientists believe Dolly is a nearly exactcarbon-copy of her genetic originating mother. In theory, that means an almostexact look-alike of John F.
Kennedy Jr. could be produced by taking cells fromhis skin, melding their nuclei with any woman’s egg that has had its nucleusremoved and then planting the embryo in a surrogate mother. Part 5: A 6-Year-Oldin 7 Months’scientists are eagerly watching Dolly to see if she exhibits thecharacteristics of her mother, a 6-year-old sheep, or those of her own age, just7 months. As animals and humans age, changes occur in their DNA – such asdecreasing fertility and increasing susceptibility to cancer and other diseases.If she prematurely ages, clones of mature animals would be useless to theagriculture industry.Science
