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The evolution of strand preference in simulated RNA replicators with strand displacement: Implications for the origin of transcription

Nobuto Takeuchi*, Laura Salazar, Anthony M Poole and Paulien Hogeweg

Biology Direct 2008, 3:33 doi:10.1186/1745-6150-3-33

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The fundamental units, processes and patterns of evolution, and the Tree of Life conundrum

Eugene V Koonin, Yuri I Wolf Biology Direct 2009, 4:33 (29 September 2009)

This article is part of a collection on Evolutionary Biology 150...

A tree is a natural representation of evolution owing to the inherent tree-like character of the replication process but the fundamental units of evolution amenable to tree analysis seem to be individual genetic elements rather than complete genomes.