Ultradian genes are genes that transcribe with ultradian rhythmicity (more than one cycle in 24 hours), that is speculated to be independent of the Circadian Clock. Their expression can induce cyclic changes such as in behavior, gene expression and metabolism (1). They have no known internal regulators, and the regulation of their expression is not well understood in D. melanogaster. Our Goal is to determine if our candidate Ultradian Genes are indeed cycling with ultradian...