LM of sheep udder cells used for sheep cloning

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This image is part of the feature Dolly The Cloned Sheep

Credit: W.A. RITCHIE/ROSLIN INSTITUTE/EURELIOS/ SCIENCE PHOTO LIBRARY

Caption: "Dolly" cloning technique (third of 5 pictures). Light micrograph of sheep udder cells used during the cloning of "Dolly", the first sheep cloned from an adult sheep cell. At left a needle sucks up a single udder cell. This cell is then injected into a sheep egg which has had its nucleus (DNA) removed. A spark of electricity fuses the egg and udder cell, and stimulates an embryo to grow. The embryo is then implanted into the womb of a surrogate sheep. Research conducted by Dr. Ian Wilmut at the Roslin Institute in Edinburgh, Scotland. (see photos G285/037, G285/038, G285/040, G285/041).

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Keywords: animal, bioengineering, biotechnology, clone, cloned, cloning, egg, engineered, engineering, genetic, genetically, genetics, light micrograph, procedure, research, sheep, sheep cloning, transgenic, udder cell

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