The Daily Debate: “Will DNA Prove to be a Universal BioConstant?”

6a00d8341bf7f753ef0133ecd17b06970b-320wi In his new book, The Eerie Silence, astrophysicist Paul Davies of Arizona State University suggests that the original cells would have been able to pick and choose from the early Earth's organic cocktail. To the best of our knowledge, he writes, "the twenty-one chosen by known life do not constitute a unique set; other choices could have been made, and maybe were made if life started elsewhere many times."

What do you think?

Image credit: jrtce1's photostream

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