Cell division involves intricate molecular choreography that would make Busby Berkeley envious. You can learn more about the genes that control mitosis, meiosis, and related processes at GermOnline, hosted by the University of Basel in Switzerland. Although data for brewer's yeast predominate, the site also offers information for humans and 10 other species. GermOnline builds on gene descriptions submitted by researchers. Users can scan the database by categories such as species, biological process, and molecular function. The resulting locus report includes links to gene and protein sequences and to studies or sites that hold gene activity measurements from microarrays.