Scientists recreated molecular switches that regulate biological timing, aiding nanotechnology and explaining evolutionary advantages.
Living organisms monitor time – and react to it – in many different ways, from detecting light and sound in microseconds to responding physiologically in pre-programmed ways, via their daily sleep cycle, monthly menstrual cycle, or to changes in the seasons.
These time-sensitive reactions are enabled by molecular switches or nanomachines that function as precise molecular timers, programmed to activate or deactivate in response to environmental cues and time intervals.
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