Streptococci deficient in genetic transformation.
D004269:DNA, Bacterial / Q000378:metabolism; D004352:Drug Resistance, Microbial; D009154:Mutation; D009675:Novobiocin / Q000494:pharmacology; D011830:Radiation Effects; D013045:Species Specificity; D013053:Spectrophotometry; D013291:Streptococcus / Q000187:drug effects / Q000378:metabolism / Q000528:radiation effects; D013307:Streptomycin / Q000494:pharmacology; D013936:Thymidine / Q000378:metabolism; D014170:Transformation, Genetic; D014316:Tritium; D014466:Ultraviolet Rays
D004269:DNA, Bacterial; D014316:Tritium; D009675:Novobiocin; D013936:Thymidine; D013307:Streptomycin