The source of these differences lies not so much in the occasional modification of DNA, as outlined above, but in the selective expression of DNA through RNA; in particular, it can be traced to processes regulating the amounts and activities of mRNA both during and after its synthesis in the nucleus.
Roughly from the 15th century to World War II, however, the version of grammar available to the Western public (together with its colonial expansion) remained basically that of Priscian with only occasional and subsidiary modifications, and the knowledge of new languages brought only minor adjustments to the serious study of grammar.
But with my penchant for a little light body modification, the occasional dime bag, vanilla cigarettes and way-too-expensive lattes at Wall Berlin, I barely had enough extra cash to cover the month.
Plant cells also remove Man residues to yield Man4 5GlcNAc2, with occasional complex GlcNAc or Gal modifications, but often add potentially allergenic β(1,2 -linked Xyl and, together with insect cells, core α(1,2 -linked Fuc residues.
Occasional use of oral pain medications and activity modification was required.
To meet the objection to not permitting an occasional lie or theft, some philosophers have defended a modification labelled "rule" utilitarianism.
This was hypothesized to be a mechanism by which the brain implements modification of Tit-for-tat so as to prevent occasional defections for informational probing from unravelling cooperation permanently.
"Occasional temperature fluctuations outside the required range were observed, and these led the SolarChill design team to make some minor modifications that resulted in stable temperature performance.
They call these occasional loads.
With a few modifications.
