81.   Del Cerro responds that ERG tests may not be sensitive enough to detect electrical activity in the small area where the transplanted cells are.

82.   Diacrin recently suspended its trials on stroke victims after two of five patients suffered seizures, though the company does not think the pig cells were the cause.

83.   Dr. Ildstad said it actually helped her patent application that facilitator cells were so hard to find.

84.   Dr. Plagemann said there was no reliable test for the virus and so no guaranteed method of ensuring bone marrow cells from baboons were free of the infection.

85.   Each cell is jam-packed with hemoglobin molecules, which actually carry the oxygen.

86.   During this process, as the roots cells are crushed, volatile oils known as isothiocyanate are released.

87.   Embryonic cells are a sort of magic clay that can be shaped into organs and tissues.

88.   Embryonic cells may be longer-lived when implanted in the body than adult stem cells would, Daley said.

89.   Each worker performs several tasks, and every cell is responsible for the quality of its products.