title: Asymmetries of nature and the origin of biomolecular handedness.
abstract: New developments in the problem of the origin of the asymmetry of the living systems are reviewed. The time of the appearance of the asymmetry was very probably during the chemical evolution. The asymmetry of weak interaction is still considered small to be the cause of chiral purity. New sources of asymmetry should also be considered, like the one proposed by Gilat.
mesh_terms: D005075:Biological Evolution; D008962:Models, Theoretical; D009904:Optical Rotation; D013237:Stereoisomerism; D013816:Thermodynamics