  Biosystems contain an almost infinite amount of vital important details,
which together ensure their life. There are, however, some common structures
and reactions in the systems: the homochirality of carbohydrates and proteins,
the metabolism and the genetics. The Abiogenesis, or the origin of life, is
probably not a result of a series of single events, but rather the result of a
gradual process with increasing complexity of molecules and chemical reactions,
and the prebiotic synthesis of molecules might not have left a trace of the
establishment of structures and reactions at the beginning of the evolution.
But alternatively, one might be able to determine some order in the formation
of the chemical denominators in the Abiogenesis. Here we review experimental
results and present a model of the start of the Abionenesis, where the
spontaneous formation of homochirality in proteins is the precondition for the
establishment of homochirality of carbohydrates and for the metabolism at the
start of the Abiogenesis.
