Which breed of sheep was Dolly genetically related to?

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Dolly was a Finn Dorset sheep. She was genetically related to the specific Finn Dorset ewe that provided the mammary gland cell used as the nucleus donor during the somatic cell nuclear transfer process. While the egg cell and the surrogate mother were Scottish Blackface ewes, Dolly was an exact genetic replica of the Finn Dorset sheep that supplied the nucleus.1234