title: Studies on the regulation of ribosomal RNA synthesis in sea urchin development.
mesh_terms: D000818:Animals; D046508:Culture Techniques; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian / Q000502:physiology; D006150:Guanine Nucleotides / Q000502:physiology; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D012617:Sea Urchins / Q000196:embryology*; D014020:Tissue Extracts / Q000494:pharmacology*
chemical_list: D006150:Guanine Nucleotides; D012335:RNA, Ribosomal; D014020:Tissue Extracts