phenotype affects entity abnormal late endosome morphology late endosome morphology of late endosome phenotype endosome morphology variant late endosome morphology variant Any variation in the form or composition of membrane bound organelles, known as late endosomes, that traffic material from early endosomes to internal compartments of the cell, such as lysosomes or the Golgi apparatus, compared to control. C_elegans_phenotype_ontology WBPhenotype:0002091