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A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an external stimulus. The synchronization of a circadian rhythm to environmental time cues such as light. Any process that modulates the frequency, rate or extent of a circadian rhythm. A circadian rhythm is a biological process in an organism that recurs with a regularity of approximately 24 hours. A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a light stimulus, electromagnetic radiation of wavelengths classified as infrared, visible or ultraviolet light. A change in state or activity of the organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a period of light or dark of a given length, measured relative to a particular duration known as the 'critical day length'. The critical day length varies between species. The synchronization of a circadian rhythm to photoperiod, the intermittent cycle of light (day) and dark (night).

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: entrainment of circadian clock by photoperiod
Acc: GO:0043153
Aspect: Biological Process
Desc: The synchronization of a circadian rhythm to photoperiod, the intermittent cycle of light (day) and dark (night).
Proteins in PDR annotated with:
   This term: 14 [Search]
   Term or descendants: 14 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0043153 - entrainment of circadian clock by photoperiod (interactive image map)
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