title: Deoxyribonucleoprotein changes in ram and bull spermatids.
mesh_terms: D000818:Animals; D001345:Autoradiography; D001665:Binding Sites; D002417:Cattle; D002467:Cell Nucleus / Q000378:metabolism; D004247:DNA / Q000378:metabolism*; D003609:Dactinomycin / Q000378:metabolism; D008297:Male; D012756:Sheep; D013053:Spectrophotometry; D013094:Spermatozoa / Q000378:metabolism*; D013194:Staining and Labeling; D014316:Tritium
chemical_list: D014316:Tritium; D003609:Dactinomycin; D004247:DNA