Darwin’s theory of natural selection requires heredity, not genes. Genes constitute one mechanism of heredity. Genes as we know them were not the starting point of evolution; before genes there was evolution without replicators. Genes, in turn, produced other mechanisms of heredity, including epigenetic mechanisms (involving the expression of genes), learning mechanisms, and systems of symbolic thought that are trans-generational.
14 de diciembre de 2014
Evolución más allá de los genes
David Sloan Wilson, 2012.