In humans, the method would start with a single cell - any cell may do - taken from the adult who wants to be cloned. Using an electrical jolt, scientists would fuse the genes from that cell with a specially treated donor egg cell whose own genes had been removed. That cell would be allowed to grow into an embryo in the laboratory. ... Unlike adult stem cells, embryonic stem cells can develop into any one of more than 200 tissues in the body, from insulin-producing cells that may one day treat diabetes to heart cells that may repair cardiac muscles. ... Maybe the whole cloning issue shouldn&#...

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• Grade Level: High School