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WorksheetsBiotechnology Quiz_Lecture 2
Total questions: 10
Worksheet time: 5mins
What are the advantages of using microorganisms in biotechnology?
Slow growth compared to plants and animals
Ease of mass cultivation
Dependence on seasons and climate
Simple nutritional requirements
What are the sources of industrial microorganisms used in biotechnology?
Isolation from the environment
Culture collections
The advantage of using microorganisms selected from a culture collection is saving cost and time.
True
False
What is strain improvement in the context of industrial microorganisms?
Increasing the yield of the product
Improving the properties of the microorganism
What are the approaches used for strain improvement?
Mutation and selection
Genetic recombination
Recombinant DNA technology
All these methods can be used
What are the advantages of preservation on agar with ordinary refrigeration?
Cheap and simple, needs no special equipment
Suitable for long-term preservation
Reduces the possibility of mutations
Allows for easy transportation
What are the disadvantages of preservation by freezing at (-20 to -80 ºC)?
Requires a cryoprotective agent
Simple and requires a minimum of equipment
Not suitable for long-term preservation
High cost and difficulty of shipment
What are the advantages of lyophilization?
Suitable for long-term preservation of microbial cultures
Easy to transport freeze-dried ampoules
Requires no further attention once dried
All of the above
Full-form of ATCC is _________
a) American Type Culture Collection
b) Automatic Type Counter & Classifier
c) American Type Counter Collection
d) American Type Classifier and Collection
The shotgun approach is the isolation and detection of microorganisms of interest.
a) True
b) False
