Cell Cultures and Characteristics Which of the following is used for the proper maintenance and preservation of pure cultures? 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 Periodic transfer to fresh media All of these ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following problem makes it impossible to satisfy all of Koch's postulates? 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 Microorganism cannot be isolated in pure culture ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Mac-Conkey medium is an example of enrichment medium transport medium all of these differential medium enrichment medium transport medium all of these differential medium ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type? Pour plate Spread plate Streak plate technique Both (a) and (b) Pour plate Spread plate Streak plate technique Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics A medium containing crystal violet dye plus sodium deoxycholate will allow gram (-)ve intestinal bacteria to grow aquatic bacteria to grow none of these gram (+)ve intestinal bacteria to grow gram (-)ve intestinal bacteria to grow aquatic bacteria to grow none of these gram (+)ve intestinal bacteria to grow ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Cell counting can be carried out by membrane filter count direct microscopic count using petroffhansser counting chamber plate counting All of these membrane filter count direct microscopic count using petroffhansser counting chamber plate counting All of these ANSWER DOWNLOAD EXAMIANS APP
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