Nadia Halim | Jan 23, 2000 | 5 min read
More Efficient Cloning Scientists at the University of Connecticut have made a conceptual breakthrough in cloning by culturing nuclear donor cells for up to three months. Cloning had previously been successful only with fresh or short-term cultured cells. "It is shocking to us that we found long-term cultured cells not only can support development of offspring, but their efficiency for cloning is actually better than short-term culturing," comments Xiangzhong Yang, head of the University of Conn