Article
Six cloned calves produced from adult fibroblast cells after long-term culture
1 Feb 2000
Abstract excerpt
Cloning whole animals with somatic cells as parents offers the possibility of targeted genetic manipulations in vitro such as "gene knock-out" by homologous recombination. However, such manipulation requires prolonged culture of nuclear donor cells. Previous successes in cloning have been limited to the use of cells collected either fresh or after short-term culture. Therefore, demonstration of genetic...
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