81.   Embryonic cells would primarily be obtained from embryos created by in-vitro fertilization for fertility treatments but no longer needed.

82.   Embryonic cell lines, each deriving from a single embryo, have the ability to divide into an infinite number of biological blank slates.

83.   It then cultivated the egg until it grew and cleaved into four embryonic cells, a step or two before developing into a human fetus.

84.   John Paul ruled out use of embryonic cells as well, pointing scientists in the direction of adult stem cells as the acceptable route for research.

85.   Nightlight Christian Adoptions sued HHS Secretary Tommy Thompson in March to oppose National Institutes of Health plans to fund research using certain embryonic cells.

86.   Scientists believe the embryonic cells are the most useful because they have not yet developed into skin or muscle or bone and can be manipulated most easily.

87.   Seven prospective human embryonic cell lines are developing in a steel-encased glass box in the Reliance LifeSciences laboratory behind locked, unmarked doors.

88.   The approach means you can store large numbers of embryonic cells for use later and even genetically engineer them as desired, said Neil L.

89.   The following month, Bush announced support for federal funding for limited medical research on existing lines of embryonic cells.

90.   The holy grail of animal scientists is to learn how to force embryonic cells to grow into a specific tissue.