Multiple forms of deoxyribonucleic acid-dependent ribonucleic acid polymerase in Xenopus laevis. Levels of activity during oocyte and embryonic development.

Animals Basidiomycota Cell Nucleus/enzymology Chromatography, Ion Exchange DNA DNA-Directed RNA Polymerases/metabolism Embryo, Nonmammalian/cytology,enzymology Female Fertilization Isoenzymes/metabolism Kidney/enzymology Metamorphosis, Biological Mycotoxins/pharmacology Oligopeptides/pharmacology Organ Specificity Ovary/drug effects,enzymology Ovum/enzymology Peptides, Cyclic/pharmacology Solubility Spectrophotometry, Ultraviolet Time Factors Tritium Uracil Nucleotides Xenopus

Isoenzymes Mycotoxins Oligopeptides Peptides, Cyclic Uracil Nucleotides Tritium DNA DNA-Directed RNA Polymerases