title: Spermatogenesis in animals as revealed by electron microscopy. XXI. Microkaryosomes and microtubules appearing during spermiogenesis of the lovebird Uroloncha striata var. domestica flower.
mesh_terms: D000818:Animals; D001717:Birds / Q000502:physiology*; D002466:Cell Nucleolus; D002467:Cell Nucleus; D003593:Cytoplasm / Q000254:growth & development; D008297:Male; D008854:Microscopy, Electron; D009698:Nucleoproteins / Q000494:pharmacology; D013094:Spermatozoa / Q000166:cytology / Q000254:growth & development*
chemical_list: D009698:Nucleoproteins