Microphotometry in biologic research.
D000042:Absorption; D001695:Biology; D002466:Cell Nucleolus; D003593:Cytoplasm; D004247:DNA / Q000032:analysis; D006651:Histocytochemistry; D007620:Karyometry; D010784:Photomicrography; D012313:RNA / Q000032:analysis; D012106:Research; D014316:Tritium; D014466:Ultraviolet Rays
D014316:Tritium; D012313:RNA; D004247:DNA