A new study challenges a popular scenario put forward to explain the arrival of the first eukaryotic organisms. In the beginning, there was boredom. Following the emergence of cellular life on earth, ...

Until recently, the maturation of the 3′-end of tRNA precursors in Bacteria has been assumed to follow the E. coli paradigm, in which a cleavage event downstream of tRNAs is followed by exonucleolytic ...

All complex life forms on Earth, including plants and animals, are made up of eukaryotic cells; they are more sophisticated than bacterial or archaeal cells, which are prokaryotic. Eukaryotes have ...