That is an inborn, biochemically determined need—not an acquired one.
Although many dhfs and fpgs sequences have been deposited in the databases, in very few cases have the activities of the gene product been characterized biochemically.
The emergence of noninvasive imaging of the human brain has ushered in an era in which the living brain can be scrutinized anatomically, biochemically, electrophysiologically, and functionally.
Methadone exposure was biochemically verified.
They share many of the same messenger molecules, have close developmental histories - both in phylogeny and in ontogeny - and finally intersect biochemically to achieve a common purpose.
Biochemically these cellular changes are mediated by specific signal transduction pathways.
In order to explore these possibilities, identificationand characterization, both biochemically and in terms of biological activity, of trypanosome components is needed.
Although the optimal conditions for re-assembly vary somewhat, no co-factors are required, which has thereby rendered intermediate filaments particularly simple to study biochemically.
