title: Ultrastructural observations on the germ line of Xenopus laevis.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus; D002467:Cell Nucleus; D002843:Chromatin; D002875:Chromosomes; D003594:Cytoplasmic Granules; D004247:DNA; D003609:Dactinomycin; D005260:Female; D006056:Golgi Apparatus; D006651:Histocytochemistry; D008297:Male; D008540:Meiosis; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D008928:Mitochondria; D010063:Ovum / Q000166:cytology; D011132:Polyribosomes; D011506:Proteins; D012260:Ribonucleases; D012270:Ribosomes; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology*; D013194:Staining and Labeling; D014981:Xenopus
chemical_list: D002843:Chromatin; D011506:Proteins; D003609:Dactinomycin; D004247:DNA; D012260:Ribonucleases