In vitro transcription.

Adenosine Triphosphate Bacillus subtilis Bacterial Proteins Bacteriophages Coliphages DNA, Single-Stranded DNA-Directed RNA Polymerases/antagonists & inhibitors Enzyme Activation Genes, Regulator Helper Viruses Lactose Macromolecular Substances Operon RNA, Ribosomal RNA, Viral Spores, Bacterial Transcription, Genetic

Bacterial Proteins DNA, Single-Stranded Macromolecular Substances RNA, Ribosomal RNA, Viral Adenosine Triphosphate DNA-Directed RNA Polymerases Lactose