Possibilities for intracellular integration: The ribonucleic acid polymerases of chloroplasts and nuclei, and genes specifying chloroplast ribosomal proteins.

Biological Evolution Cell Nucleus/enzymology,metabolism Centrifugation, Density Gradient Chemical Phenomena Chemistry, Physical Chloroplasts/enzymology,metabolism Chromatography, DEAE-Cellulose Chromatography, Gel DNA/metabolism DNA Replication DNA-Directed RNA Polymerases/isolation & purification,metabolism Electrophoresis, Polyacrylamide Gel Erythromycin/metabolism Genes Genotype Isoenzymes/isolation & purification,metabolism Mutation Plant Proteins/metabolism Plants/enzymology,metabolism Protein Biosynthesis/drug effects RNA/biosynthesis Ribosomal Proteins/biosynthesis Ribosomes/metabolism Rifamycins/pharmacology Transcription, Genetic/drug effects Zea mays/enzymology

Isoenzymes Plant Proteins Ribosomal Proteins Rifamycins RNA Erythromycin DNA DNA-Directed RNA Polymerases