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- 1. Multiple Choice
Q.1: Screening of microorganisms includes .
Done in one or few steps
Allow discarding of many valueless microbes
Easy detection of the small percentage of useful microorganism
All of the above
- 2. Multiple Choice
Primary screening of organic acids or amines producing organisms is done by
Crowded plate technique
Dye such as neutral red or bromothymol blue is used
Enrichment culture Technique
Auxanographic method
- 3. Multiple Choice
Antibiotic producing microorganisms can be detected by the method
Incorporation of CaCO3 in the agar medium
Crowded plate method
Indicator Dye Method
None of the above
- 4. Multiple Choice
Secondary screening can give information about ...........
The genetic instability in microbial cultures
Number of products produced in a single fermentation
The structure of product
All of the above
- 5. Multiple Choice
Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes..........
Detection and isolation of microorganisms that possess potentially interesting industrial application
Enrichment culture technique
It helps in providing information regarding the product yield potentials of different isolates
A and B both
- 6. Multiple Choice
What type of mutation happens to just one base.
Chromosome Mutation
Point Mutation
DNA Mutation
Deletion Mutation
- 7. Multiple Choice
What is it called when a point mutation messes up several amino acids?
Chromosomal Mutation
Reading Frame Mutation
Frameshift Mutation
Amino Acid Mutation
- 8. Multiple Choice
What is a mutation?
A change in a chromosomal region.
A negative change in the nucleotide sequence of DNA.
A change in one base pair in DNA.
Any change in the nucleotide sequence of DNA.
- 9. Multiple Choice
When do mutations occur?
During DNA replication.
During protein synthesis.
A mutation can occur any time.
Induced by chemical or physical mutagens
- 10. Multiple Choice
What is mutagenesis?
Multiple mutations.
The production of mutations.
Mutations that are gene specific.
The study of mutations.
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