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.
Genetics. Research in genetics in this department employs a variety of organisms, ranging in complexity from bacteriophage to humans. Several groups are studying the process of transmission of genes by analyzing DNA replication, DNA repair, chromosome segregation and cell division. The use of genetics to identify regulatory genes and to define biological mechanisms is a crucial tool in unraveling a myriad of biological problems.