books.google.it - The study of evolution at the molecular level has given the subject of evolutionary biology a new significance. Phylogenetic 'trees' of gene sequences are a powerful tool for recovering evolutionary relationships among species, and can be used to answer a broad range of evolutionary and ecological questions....http://books.google.it/books/about/Molecular_Evolution.html?hl=it&id=AtUJlgDKVFYC&utm_source=gb-gplus-shareMolecular Evolution
