41.   A small, privately funded biotechnology company said Sunday that it had created the first human embryos ever produced by cloning.

42.   Abortion opponents say obtaining stem cells by destroying human embryos is illegal and immoral.

43.   Advance Cell is trying to use cloning technology to create human embryos for deriving stem cells that would be a perfect match for patients.

44.   Advanced Cell Technology, until recently, was the only US institution openly seeking to clone human embryos for medical purposes.

45.   Advanced Cell Technology, the Massachusetts company that recently claimed to have cloned human embryos, reported the first human parthenotes in the same scientific paper.

46.   Advanced Cell Technology made world headlines last month when the company announced it had cloned a human embryo, growing it into six cells before it stopped developing.

47.   Advanced Cell Technology used two different methods to try to create human embryos.

48.   Britain last week became the first country to grant a patent covering cloned early-stage human embryos.

49.   Bush has said he opposes federal spending on stem cell research that involves the destruction of living human embryos.

50.   Bush struck a careful compromise that he said would encourage potentially life-saving research but discourage experiments on human embryos, which are destroyed in stem cell experiments.