Abstract from: Cloning : Where Do We Draw the Line? The first attempt in cloning was conducted in 1952 on a group of frogs. The experiment was a partial success. The frog cells were cloned into other living frogs however, only one in every thousand developed normally , all of which were sterile. The rest of the frogs that survived grew to abnormally large sizes. In 1993, scientist and director of the in vitro lab at George Washington University, Jerry Hall and associate Robert Stillman, reported the first ever successful cloning of human embryos. It was the discovery of in- vitro fertilization in the 1940’s that began the pursuit to ease the suffering of infertile couples. After years of research, scientists learned that "in a typical in-vitro procedure, doctors will insert three to five em....

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Number Of Words: 795

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