Dr Ian Wilmut with the adult sheep clone Dolly

Dr Ian Wilmut with the adult sheep clone Dolly

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This image is part of the feature Dolly The Cloned Sheep

Credit: PHILIPPE PLAILLY/SCIENCE PHOTO LIBRARY

Caption: Ian Wilmut. British embryologist Dr. Ian Wilmut with "Dolly", the world's first sheep cloned from an adult sheep cell. He headed this research conducted at the Roslin Institute in Edinburgh, Scotland. Wilmut's work involved taking an egg cell from a Scottish Blackface (SB) ewe & removing the cell nucleus. Next, an adult cell from the udder of a 6-year-old Finn Dorset ewe was cultured and then injected into the enucleated egg cell. A spark of electricity then fused the udder cell with the egg cytoplasm and stimulated the egg to grow into an embryo in the womb of a surrogate SB sheep. In 1997, Wilmut introduced to the world "Dolly", the first sheep cloned in this way.

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Keywords: clone, cloned, cloning, dolly, embryologist, ian, portraits, researcher, sheep, surname w, wilmut

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