Originally posted by FabianFnas
If I've understood it correctly, these bacteria uses Arsenic instead of Phosphorus, in DNA, in ATP, in proteins and elsewere. Very alien if you ask me.
Is the aminoacids in the DNA the same, the ACTG blocks that define the genetic information? Does it code for the same proteins as our DNA do?
I have had a feeling that when life first showed itself o ...[text shortened]...
This is very interesting. Anyone who knows more about this, please give us more information!
The reason for carbon is this: Carbon can make many many times the kinds of molecular bonds, its closest neighbors can only make simpler bonds so silicon could make life probably, it didn't win out here because carbon gets to make more complex material for life.
This life form is not alien because it is based on regular earthy DNA, with some modifications. This report was the one I referred to in one of my posts, NASA had a discovery about life that came out thursday, that was the gist of it. Arsenic instead of phos.
It is not like any other earth form but it is still from earth. It just evolved in a highly arsenic bearing water.
It could just as easily been the next one down the table, Sb, antimony, or maybe the next one down, Bi, Bismuth. Less likely of course but now that arsenic has been proven to be able to sub for phos, it seems like a long term high concentration of antimony could do the trick also.