| Important mechanisms for epigenetic alteration of gene expression include DNA methylation and histone acetylation. |
| The alteration to or imitation of older styles was not limited to the 19th century. |
| The scale of alteration can vary in extent from less than a centimetre to many tens of kilometres. |
| The only major alteration was with the windchests, where the bottom boards were replaced with plywood. |
| It is an alteration product of realgar, native arsenic, and, less commonly, arsenopyrite. |
| From the 1940s to the 1970s, different techniques in keratomileusis evolved in surgical alteration of the cornea. |
