“All life is imperfectly transmitted code,” Enriquez began, “and it is promiscuous.” Thus discoveries like the one last month of an entire bacterial genome inside the DNA of a fruitfly is exploding the old tree-of-life models of evolution. The emerging map replaces gene lineages with gene webs.
“There is a whole genomic continent to discover, and we’ve just mapped part of the coastline so far…
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