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 ...

Darwin found sex a mystery. He was perplexed not by the practice—he and his wife, who also happened to be his cousin, had ten children—but by the point of it. Darwin spent the last part of his life ...

Scientists have long dreamed of discovering the alchemy by which chemicals can be turned into life. On Wednesday, a team at the University of Minnesota announced that it had taken a major step toward ...