BIOL 3040 Lecture Notes - Event Horizon, Rna World, Ribose
Document Summary
Chapter 11: the origin and evolution of early life. 11. 1 origin and diversification of life on earth. Because of this, no direct observations from phylogenetic methods in the present can explain other organisms beyond luca. This hints at how the building blocks of life may have come into existence. Rna replication: dna has repair mechanisms, proofreading and repair systems dramatically lowers mutation rates. Each facilitates the replication of the other in a closed loop: a b c d a. the more a present, the faster b will replicate. At some point the cell would become too big and begin to buckle or the cell could split into two cells. This makes them easy to analyze: what is meant by the minimal gene set, certain functions are found in all organisms and are associated with about 206 different genes referred to as the minimal gene set. Processing and folding of proteins (15 genes)
