Thursday, February 15, 2007
Death and the exhaustion of Telomeres!
Cell biology has discovered cell division, the constant process of division and renewal of cells ceases when telomeres, which are the ends of chromosomes progressively shortened and finally exhausted making further cell division impossible. The cell's dividing limit is the natural end of life. Prolonging life depends on genetic engineering finding ways to extend this dividing limit by spending less and less of telomeres on each cell division.