quality control (QC):
The stock cultures needed for QC testing of deoxyribonuclease (DNAse) production are Serratia marscescens and Escherichia coli. The stock cultures needed for QC testing of deamination activity are Proteus mirabilis and E. coli. The stock cultures needed to QC testing of oxidase activity are Pseudomonas aeruginosa (+ control) and E. coli (- control). The stock cultures needed for QC testing of Kovac's indole production are E. coli (+ control) and K. pneumoniae (- control). The stock cultures needed for QC testing of motility are K. pneumoniae and E. coli.