Voltar

All of today's DNA, strung through all the cells of the earth, is simply an extension and elaboration of [the] first molecule.

Lewis Thomas , em The Medusa and the Snail: More Notes of a Biology Watcher
evolution science biology origin-of-life dna origin-of-dna common-ancestor universal-common-ancestor first-cell first-molecule origin-of-the-first-cell origin-of-the-first-molecule