Change in the abundances of amino acids obtained with the fiducial initial molecules (magenta curve) and the initial molecules with the same atomic ratio but different molecular species (green curve), which consist of 7 carbon dioxide molecules (CO₂), 9 ammonia molecules (NH₃), 15 water molecules (H₂O), and 16 hydrogen molecules (H₂). While the initial evolution, which depends on the initial molecular species, differs between the two, they synchronize once the bonds are sufficiently randomized by UV irradiation.