Cloning research

Cloning research

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Credit: MAURO FERMARIELLO/SCIENCE PHOTO LIBRARY

Caption: MODEL RELEASED. Cloning research. Scientist removing oocyte cells from the ovaries of a domestic cow (Bos taurus) by endoscopy. The oocytes will be used in cloning research to carry donor genetic material to create a clone. Once an oocyte has been extracted, it has its nuclear material removed. The empty oocyte is filled with nuclear material from a body (somatic) cell of a donor animal. The resulting cloned oocyte is cultured to the blastocyst embryo stage before being implanted into a foster cow for pregnancy. Clones of valuable domestic cows and the gaur (Bos frontalis), an endangered species related to the cow, have been created by this method.

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Keywords: animal, bioengineering, biotechnology, bos taurus, bovine, breeding, catheter, cesare, cloning, cow, endoscope, endoscopy, engineered, engineering, extraction, female, galli, genetic, genetically, genetics, harvest, harvesting, male, man, men, oocyte, oocytes, ovaries, ovary, removal, reproduction, reproductive, research, researcher, researchers, vet, veterinary medicine

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