john.calixte
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Proving another genesis
john.calixte replied to john.calixte's topic in Evolution, Morphology and Exobiology
Interesting! Convergent evolution of the genetic code from different origins. The answer to my question could get complicated. -
If life off Earth is discovered, what evidence would science require to prove that the life does not share a common ancestor with life on Earth? In other words, how could science prove that this newly discovered life resulted from a different "genesis" than life on Earth? A different genetic code? A non-carbon molecular base? A different DNA structure? Thanks for your thoughts!