2. bow down-bend one's knee or body, or lower one's head; He bowed before the King; She bowed her head in shame. bow. conge, congee-perform a ceremonious bow. gesticulate, gesture, motion-show, express or direct through movement; He gestured his desire to leave.
Sections. Definition. Gene regulation refers to the mechanisms that act to induce or repress the expression of a gene. These include structural and chemical changes to the genetic material, binding of proteins to specific DNA elements to regulate transcription, or mechanisms that modulate translation of mRNA. News and Comment.
DNA Genes and Protein  the gene is a subunit of DNA, one strand of DNA is copied into mRNA which is then translated into proteins. + 17 others found this useful. gene is a sequence of DNA that determines a particular trait. A chromosome is a coiled DNA chromosome that contains the organisms genetic code (aka-genes).