In our recent studies, it has been suggested that both symmetry breaking (v
iolation) and biological rhythms could be caused by the natural rhythmic ri
ght-handed helical force field produced by the Earth's orbital chirality (E
OC) (1-3). In this essay, according to the further theoretical and experime
ntal studies, it was suggested that the natural EOC force field could serve
as the diving force of biomolecular evolution via the chiral interactions.
In addition, the following suggestions also were pointed out: (1)The EOC f
orce field could cause the origin of non-coding repetitive DNA sequences ('
Junk DNA') to increase the genomes stability and complexity; (2) The EOC fo
rce field could increase the structural order of biological systems via the
biomolecular EOC stabilization energy effects; (3) The biological informat
ion could be spontaneously produced by the chiral interactions of the proto
genes with the EOC force field. (C) 2001 Harcourt Publishers Ltd.