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Category:GO:0009648 ! photoperiodism
name: photoperiodism
namespace: biological_process
def: "Any process that results in a change in state or activity of an 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." [GOC:jid, GOC:pj, ISBN:0582015952, ISBN:0697037754, ISBN:0709408862]
synonym: "response to day length" EXACT []
synonym: "response to night length" EXACT []
synonym: "response to photoperiod" EXACT []
xref: Wikipedia:Photoperiodism
is_a: GO:0009416 ! response to light stimulus
AmiGO
<GOterm>GO:0009648</GOterm>
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This category has the following 6 subcategories, out of 6 total.
