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by seiferteric 3012 days ago
Not if you believe in panspermia.
1 comments
vadimberman 3012 days ago
It depends on the kind of panspermia.

If it's about generic organic molecules then the DNA is a local construct. If it's about microorganisms, then it's different.

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seiferteric 3012 days ago
True. It's also possible that DNA is the only form of life that really works, but we just don't know yet.
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lovemenot 3012 days ago
There's 6-base pair organisms now. https://www.sciencealert.com/new-organisms-have-been-formed-...

Also, RNA seems to work and it's possible we started out using RNA and later evolved to DNA.

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