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I don't know any other hypothetical building blocks for complex life. It could possibly be the case that the alternatives are too unstable and that alien life w
by slphil 9y ago
I don't know any other hypothetical building blocks for complex life. It could possibly be the case that the alternatives are too unstable and that alien life would be made of something remarkably similar to (but obviously not identical to) Earth DNA.
- vadimberman 9y agoThere's RNA and possibly others even on this planet: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3331698/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3331698/