The Success Of Cloning Dolly The Sheep Five Years Ago

545 words - 2 pages

The success of cloning Dolly the sheep five years ago in Scotland has raised the controversy of the possibility of ever doing the same with human life. All the same animals such as sheep, mice, goats, kittens, and pigs have all been cloned. Nevertheless, the thought of cloning humans seem so far fetched. That was only before Advanced Cell Technology in Worcester, Massachusetts publicized its attempt in progress to clone a human embryo, and at the time was in its six-cell stage. According to the GNN Genome News Network, an Italian doctor claims to have cloned and implanted a human embryo into a woman's uterus. However, the question that must be raised is there possibly enough evidence that proves cloning to be effective and safe? A new study conducted by Rudlolf Jaenisch and his collegues at the Whitehead Institute for Biomedical Research in Cambridge, Massachusetts, reveals that the genomes of cloned mice are severely compromised. The study consisted of DNA microarray technology, where over 10,000 genes from liver and placenta cells from cloned mice were analyzed and found that up to four percent of the genes do not function normally.Additionally, there have been two camps that cloned mammals, less than ten percent of cloned embryos survive. All the while, the fortunate embryos that do survive are typically oversized at birth have grossly large placentas. It is known that those embryos typically die at a much younger age than their naturally bred counterparts. Jaenisch says that the apparent problem of the clone is from changes in the normal program of gene...

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