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.Extraterrestrial amino acids and L-enantiomeric excesses in the CM2 carbonaceous chondrites Aguas Zarcas and Murchison.Meteoritics & Planetary Science56, 148–173 (2021)
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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.