![]() ![]() ![]() ![]() In the first method, they remove the DNA-containing nucleus of the somatic cell with a needle and inject it into the empty egg. Researchers can add the DNA from the somatic cell to the empty egg in two different ways. They then transfer the DNA of the donor animal's somatic cell into an egg cell, or oocyte, that has had its own DNA-containing nucleus removed. In reproductive cloning, researchers remove a mature somatic cell, such as a skin cell, from an animal that they wish to copy. ![]()
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