Making life simple.

Considers the theory that the earliest life on earth was more like complex eukaryotic cells than simple bacteria. Implications for the evolutionary pattern of bacteria; RNA as the former basis of life function; Why the RNA world switched to DNA; The theoretical RNA-based Riborgis eigensis; How an RNA-based cell would have functioned; Function of ribosomes and proteins; Intron/exon arrangement; The adaptive devolution of bacteria from eukaryotic to prokaryotic form. INSET: Look, no genome, by Rachel Nowak.