Cell Cultures and Characteristics Which of the following problem makes it impossible to satisfy all of Koch's postulates? Microorganism cannot be isolated in pure culture Species of microorganism is in question Genes from the microorganism cannot be amplified by PCR Microorganism causes serious symptoms in humans Microorganism cannot be isolated in pure culture Species of microorganism is in question Genes from the microorganism cannot be amplified by PCR Microorganism causes serious symptoms in humans ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics A medium containing crystal violet dye plus sodium deoxycholate will allow none of these aquatic bacteria to grow gram (-)ve intestinal bacteria to grow gram (+)ve intestinal bacteria to grow none of these aquatic bacteria to grow gram (-)ve intestinal bacteria to grow gram (+)ve intestinal bacteria to grow ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following methods is most likely to be quantitative? Gram staining Dilution and plating Wet mount None of these Gram staining Dilution and plating Wet mount None of these ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Plate counts are often reported as cfu Both (a) and (b) cfu/ml thousands/ml cfu Both (a) and (b) cfu/ml thousands/ml ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics The concentration of agar to obtain semi solid media is 1.5-20% >10% >10%but<20% 0.5% or less 1.5-20% >10% >10%but<20% 0.5% or less ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Peptone water and nutrient broth are basal media none of these enriched media selective media basal media none of these enriched media selective media ANSWER DOWNLOAD EXAMIANS APP
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