Composition and structure of chromosomal and amplified ribosomal DNA's of Xenopus laevis.

Animals Anura/metabolism Autoradiography Chromosomes/analysis Cytosine Nucleotides/analysis DNA/analysis Female Genes Hot Temperature Hybridization, Genetic Models, Biological Models, Chemical Models, Structural Molecular Weight Nucleic Acid Denaturation Nucleotides/analysis Ovary Phosphorus Isotopes RNA/analysis Ribosomes/analysis Tritium

Cytosine Nucleotides Nucleotides Phosphorus Isotopes Tritium RNA DNA