W.A. RITCHIE / ROSLIN INSTITUTE / EURELIOS / SCIENCE PHOTO LIBRARY W.A. RITCHIE / ROSLIN INSTITUTE / EURELIOS / SCIENCE PHOTO LIBRARY
Light micrograph of a sheep egg and an udder cell during cloning of "Dolly", the first sheep cloned from an adult cell. At centre is a sheep egg cell. At left a pipette holds the egg which has had its nucleus removed; at right a needle contains an udder cell which will be injected into the egg. A spark of electricity then fuses these cells into one and stimulates an embryo to grow. The embryo is implanted into the womb of a surrogate sheep. Research conducted by Dr Wilmut at the Roslin Institute, Edinburgh, Scotland. G285/037, G285/038, G285/039, G285/041).
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