Cell Cultures and Characteristics Which of the following is used for the proper maintenance and preservation of pure cultures? Periodic transfer to fresh media All of these Preservation by lyophilization Preservation by overlaying cultures with mineral oil Periodic transfer to fresh media All of these Preservation by lyophilization Preservation by overlaying cultures with mineral oil ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics To select cholera-causing bacterium, Vibrio cholerae, the pH of the medium is maintained at a pH of 6.79 8.90 3.5 8.5 6.79 8.90 3.5 8.5 ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Plate counts are often reported as cfu cfu/ml thousands/ml Both (a) and (b) cfu cfu/ml thousands/ml Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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 Microorganism causes serious symptoms in humans Species of microorganism is in question Genes from the microorganism cannot be amplified by PCR Microorganism cannot be isolated in pure culture Microorganism causes serious symptoms in humans Species of microorganism is in question Genes from the microorganism cannot be amplified by PCR ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics In the pour plate method, the mixed culture is diluted directly in tubes of liquid agar medium none of these sterile liquid usually water both (a) and (b) liquid agar medium none of these sterile liquid usually water both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following hint(s) suggest/s that a given specimen is likely to contain anaerobic bacteria? Gas in specimen Foul odour Presence of sulphur granules All of these Gas in specimen Foul odour Presence of sulphur granules All of these ANSWER DOWNLOAD EXAMIANS APP
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