1. Cloning
Clone is a group of genetically identical cells. One example are tumors, they are clones of cells inside an organism because they consist of many replicas of one mutated cell. Another type of clone occurs inside a cell. ... This is controversial because you have to produce a human embryo from which you could then derive "stem cells" in a tissue culture dish in the lab. "Embryonic stem cells retain the ability to differentiate into all the various tissues of the human body" (Gardels1). ...
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