Eugene Russo | Jul 9, 2000 | 7 min read
Courtesy of ScienceThe fruit fly circadian cycle shares three strong similarities with the mammalian: the per gene itself, CLOCK and BMAL regulation of per, and a gene called tau in hamsters and double-time (dbt) in flies, both of which encode the enzyme CKI*. Molecular biologists have been teasing apart the intricate innards of organisms' biological clocks for decades, gaining rare insight into a veritable bridge between genes and behavior. Those clocks' circadian rhythms, the 24-hour cycles t