Transfer of penicillin resistance in pneumococci by the desoxyribonucleate derived from resistant cultures.
D009696:Nucleic Acids; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D013296:Streptococcus pneumoniae
D009696:Nucleic Acids; D010406:Penicillins
DIPLOCOCCUS PNEUMONIAE; NUCLEIC ACIDS; PENICILLIN/effects