Imagine the tree of life. The tip of every branch represents one species, and if you follow any two branches back through ...

Networks of Genome Evolution Replace the Tree of Life Evolutionary ... lack many of the genes that are universal among the three domains of cellular life — in particular, genes for translation ...

University of Arizona The researchers employed a new approach to evaluate amino sequences across the tree of life, all the way back to the last universal common ancestor, or LUCA, a hypothetical ...