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Category:GO:0043673 ! sexine
name: sexine
namespace: cellular_component
def: "The outer, sculptured layer of the exine, which lies above the nexine." [PMID:5722147]
comment: Note that the sexine sometimes consists of 5 layers, but of those, 3 layers are the most common (sexine 1 = columellae; sexine 2 = tectum; sexine 3 = sculpture elements). Sexine is distinguished on purely morphological criteria; compare with 'ectexine ; GO:0043669'. See also 'nexine ; GO:0043672'.
is_a: GO:0110165 ! cellular anatomical structure
relationship: part_of: GO:0043668 ! exine
AmiGO
<GOterm>GO:0043673</GOterm>
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This category has the following 3 subcategories, out of 3 total.