Genome DNA contains not only structural genes, but also some silence genes which had yet no clear function, and the perceptible phenotype is the results of functional gene expression under influence of both internal and external environment.
For hundreds of years in the west, Christian art had a very clear function: it was meant to direct us towards the good and wean us off vice.
Express independent ideas independently, each in its own crystal clear function.
"It is the first target gene of Foxp2 that has a clear function with respect to neuronal function".
This ectoparasite has been described as a rich source of serine protease inhibitors most of them are Kunitz-BPTI members named BmTIs which have no clear function yet.
Joenje et al. have shown the rate of chromosomal breakage in FA cells to be a clear function of the oxygen concentration in the culture environment [9].
Such structures may have little or no function in a current species, yet have a clear function in ancestral species, or other closely related species.
An ancient protein conserved from echinoderms to humans (500 650 mya), SAA has no known homologue and until recently no clear function [23].
These functions are mainly taking place at the cell level and so far no clear function has been demonstrated at the level of the entire organ.
In contrast, no clear function has yet been determined for α1 AMPK in skeletal muscle, possibly due to α-AMPK isoform signaling redundancy.
These muscles even occur in all species and castes of termites studied so far [9,14, Šobotník, unpublished], without any clear function.
