11.   They were cloning cells from early embryos that had not yet specialized.

12.   You send the samples to a Worcester lab, where scientists have already cloned human cells, entire cows, and an endangered, oxlike animal called a gaur.

13.   A South Korean medical team said it has made an important advance in cloning human cells to create replacement organs.

14.   And scientists expect that using cells extracted from embryos created by cloning a cell from the sick person would overcome the problem of transplant rejection.

15.   In the monkey cloning, however, researchers cloned cells from an eight-cell embryo.