Filler in textured paint works like spackling compound to fill the cracks, and dark, flat paint absorbs light to help conceal remaining blemishes. Be aware that dark colors will make your ceiling appear lower, so consider using very dark colors only in normally proportioned or narrow rooms.
In genetics, a promoter is a region of DNA that initiates transcription of a particular gene.
1. the enzyme RNA polymerase untwists and unzips a segment of DNA and makes an RNA copy of that gene. 2. A promoter sequence tells the RNA polymerase where a gene starts and a terminatior sequence tells the RNA polymerase where the gene stops.