Biotic molecular samples exhibit consistently higher diversity than abiotic ones, providing a statistical biosignature based on relative abundances that persists under degradation.
P.et al.Abundant extraterrestrial amino acids in the primitive CM carbonaceous chondrite Asuka 12236.Meteoritics & Planetary Science55, 1979–2006 (2020)
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Molecular diversity as a biosignature
Biotic molecular samples exhibit consistently higher diversity than abiotic ones, providing a statistical biosignature based on relative abundances that persists under degradation.