Stem cell, cloning expert Jerry Yang dead at 49 HARTFORD, Conn. (AP) - Xiangzhong "Jerry" Yang, a stem cell scientist who successfully cloned the first farm animal in the United States, has died after a long battle with cancer. He was 49. Yang, director of the Center for Regenerative Biology at the University of Connecticut, died Thursday at...

Stem cell, cloning expert Jerry Yang dead at 49 
HARTFORD, Conn. (AP) - Xiangzhong "Jerry" Yang, a stem cell scientist who successfully cloned the first farm animal in the United States, has died after a long battle with cancer. He was 49. Yang, director of the Center for Regenerative Biology at the University of Connecticut, died Thursday at...