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Clone
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This diagram illustrates the cloning process of Dolly the sheep in 1996, showing how a nucleus from an adult Finn Dorset ewe was fused with an enucleated egg cell from a Scottish Blackface ewe, then implanted into a surrogate to produce Dolly. “The Clone Giants”
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Clone

genetics
Also known as: clon
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Clone, cell or organism that is genetically identical to the original cell or organism from which it is derived. The word clone originates from the ancient Greek klon, meaning “twig.” Many unicellular organisms, such as bacteria and yeasts, are clones of parent cells generated by either binary fission or budding. The body cells of plants and animals are clones ultimately derived from the mitosis (cell reproduction) of a single fertilized egg. More narrowly, a clone...

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