Paper: Glass JI, Assad-Garcia N, Alperovich N et al. (2006) Essential genes of a minimal bacterium. Proc. Natl Acad. Sci. U.S.A. 103, 425-430.Questions: 1. What is the big question being addressed in this paper?2. Why was M. genitalium chosen for analysis?3. What was the main finding from their analysis?4. What makes this study so exciting?