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If we contaminated Mars with microbial life from Earth, it would have a similar genetic signature to sequenced organisms on Earth. Assuming we could get a DNA s
by fractalwrench 10y ago
If we contaminated Mars with microbial life from Earth, it would have a similar genetic signature to sequenced organisms on Earth. Assuming we could get a DNA sequencing machine up there, it would probably be obvious that the organism originated from Earth unless it was some previously undiscovered Archaea.
- CoryG89 10y agoSure, assuming that we find life that is significantly different than life on Earth. If all we find is microbial life that is genetically similar to that on Earth, then you might be inclined to believe we brought it there, but it seems possible there might be no way to know for sure.