121⟩ A cytolytic virus would be expected to cause cytopathic effect in cell culture?
* A. True
* B. False
Correct Answer: A
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“Microbiology Interview Questions and Answers will guide us now that Microbiology is the study of microorganisms, which are unicellular or cell-cluster microscopic organisms. This includes eukaryotes such as fungi and protists, and prokaryotes. Viruses, though not strictly classed as living organisms, are also studied. So learn more about Microbiology with the help of this Microbiology Interview Questions with Answers guide”
124 Microbiology Questions And Answers
122⟩ Influenza virus hemagglutinins play a significant role in which of the following phases of viral replication?
* A. Uncoating
* B. Virion Assembly
* C. Release by budding
* D. Adsorption
* E. Production of mRNA
Correct Answer: D
123⟩ Why the dilution containing 10-100 cfu of microorganisms are used for the tests?
During growth promotion test, We check whether media is capable of promoting growth of inoculated microorganisms or not.So, in GPT culture suspension of 10-100 cfu's or not more than 100 cfu's required because first thing is that we can easily count the number of recovered microorganisms on the media plate.
Another important thing is that we are challenging the media with the microorganisms and the microorganisms which we use for GPT should not be more than 5 passage removed form the original culture. So, we are working with the healthy microorganisms and these microorganisms should grow on the media which we are testing. This is like a challenge to use low number of microorganisms to check the growth promotion properties of the media. For this reason we use 10-100 cfu's or not more than 100 cfu's for growth promotion test.
