Thomas R. Cech on the 2009 Nobel Prize in Medicine.

HHMI investigator Thomas R. Cech studies the structure and function of telomerase in his University of Colorado lab. Cech, who shared the 1989 Nobel Prize in Chemistry with Sidney Altman and served as HHMI’s president from 2000 through April, 2009, shares his thoughts on the seminal discoveries honored by this year’s prize.