2/11/2011

How body clock synchronizes to day and night cycle

French researchers have unveiled a mechanism that explains how biological clock works in sync with the day and night cycle despite large fluctuations in light intensity during the day and from day to day.Following the identification of two central ‘clock genes’ of a green alga, Ostreococcus tauri, a mathematical model reproducing their daily activity profiles has revealed that their internal clock is influenced by the naturally varying light levels throughout the day only at periods when it needs resetting.
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