Effects of disintegration of incorporated 3H and 32P on the physical and biological properties of DNA.

Biological Assay Carbon Isotopes Centrifugation, Density Gradient DNA, Bacterial/isolation & purification,radiation effects Escherichia coli Genetics, Microbial Hybridization, Genetic Models, Biological Molecular Weight Phosphorus Isotopes Pyrimidines Radiation Effects Streptococcus pneumoniae Tritium

Carbon Isotopes DNA, Bacterial Phosphorus Isotopes Pyrimidines Tritium