81.   Human cells must generally disrupt a series of their growth control genes before becoming cancerous.

82.   Human cells altered with the genes of an enzyme isolated and produced by the company continued to divide well after they should have died, the scientists said.

83.   Human cells have a desperate countermeasure.

84.   Human cells have no trouble spotting the genes and regularly make copies of active genes.

85.   If human embryonic cells can be converted into myelin-making cells the same way, the method could eventually help treat human neurological disorders, the authors say.

86.   Immortalizing human cells is certainly an interesting feat, but what does that mean for people?

87.   In ambition and complexity, the effort to read all the genetic code contained in human cells rivals the Big Dig.

88.   In August, University of Wisconsin researchers reported that human embryonic cells could be converted into blood-forming cells.

89.   In fact, some researchers are already transferring nuclei from adult human cells.

90.   In January, the company announced that it had found a way to keep human cells alive well past the time they normally die.