title: PROPERTIES OF A RIBONUCLEIC ACID SYNTHESIZING SYSTEM IN CELL-FREE EXTRACTS OF TOBACCO LEAVES.
mesh_terms: D000255:Adenosine Triphosphate; D001669:Biochemical Phenomena; D001671:Biochemistry; D002467:Cell Nucleus; D002736:Chloroplasts; D003597:Cytosine Nucleotides; D003609:Dactinomycin; D006150:Guanine Nucleotides; D012313:RNA; D012106:Research; D012260:Ribonucleases; D014026:Nicotiana; D014500:Uracil Nucleotides
chemical_list: D003597:Cytosine Nucleotides; D006150:Guanine Nucleotides; D014500:Uracil Nucleotides; D003609:Dactinomycin; D012313:RNA; D000255:Adenosine Triphosphate; D012260:Ribonucleases
keywords: ACTINOMYCIN; ADENOSINE TRIPHOSPHATE; BIOCHEMISTRY; CELL NUCLEUS; CHLOROPLASTS; CYTOSINE NUCLEOTIDES; EXPERIMENTAL LAB STUDY; GUANINE NUCLEOTIDES; RIBONUCLEASE; RNA; TOBACCO; URACIL NUCLEOTIDES