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That makes me wonder if there are any "you can't get there from here"s in biology.. metabolic bases that are so different that they could not have been progenit
by michaelfeathers 16y ago
That makes me wonder if there are any "you can't get there from here"s in biology.. metabolic bases that are so different that they could not have been progenitors of each other through evolution. I suppose the answer is probabilistic.
- tome 16y agoThis is what "intelligent design" proponents are trying to prove all the time, isn't it?
- michaelfeathers 16y agoTrue, but if found a striking example of "you can't get there from here" would marginalize their efforts.
- roadnottaken 16y agoWell, as gort pointed out, if they adhere to the central dogma (DNA > RNA > Protein) then the answer is 'probably not' (i.e. you can get everywhere from there). However, if they used an entirely different type of chemistry to make life then I think it would be likely that they evolved separately.