List of top Biotechnology Questions on Microbiology

A population of bacterial cells grows from 10,000 to 100,000,000 cells in 6 hours. The generation time of the bacterial population is ........... min. (rounded off to 2 decimals)
Which of the following statement(s) is/are CORRECT about Deinococcus radiodurans?
Mechanism of antibacterial action of polymyxins relies on the
The final stage of peptidoglycan (PG) biosynthesis is marked by PG cross-link formation and remodeling. Which of the following enzymes does NOT take part in these processes?
Sequence comparison of which of the following genes is used as a measure of evolutionary divergence across bacterial species?
Which one of the following is the causative agent of fowl cholera?
Which microorganism is most commonly used for large-scale industrial production of L-glutamic acid?
In the production of citric acid by Aspergillus niger, the accumulation of citric acid is primarily due to:
Which of the following organisms typically get their carbon for biosynthesis from carbon dioxide?
Porins:
Agar-agar is a polymer of:
The prominent group of microorganisms involved in marine biocorrosion is:
Which of the following is a selective medium for Gram-negative bacteria?
A transducing phage differs from a regular bacteriophage in that it:
Which one of the following is most accurate for determining bacterial cell viability?
The most common mode of transmission for diphtheria, pneumonia, and tuberculosis is through:
Which growth phase is characterized by the most rapid increase in cell number and maximal metabolic activity?
Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed?
Which phase of microbial growth is characterized by a balance between cell division and cell death?
Exopolysaccharides are often produced by microorganisms in response to
Penicillin belongs to which class of antibiotics?
Antibiotics are substances produced by microorganisms to
Chemoorganotrophic heterotroph organisms use
Microbes at exponential growth phase will have
Axenic culture means