Florida Biological Immortality Telomerase, Transdifferentiation, and more Preface Biological immortality Hayflick limit Telomerase Telomere Telomerase Telomerase reverse transcriptase Telomerase RNA component TEP1 Ciliate telomerase RNA Astragalus Geron Corporation Transdifferentiation Stem cell Transdifferentiation Turritopsis nutricula