InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
What is false about plasmids ?A. It is must for normal life of bacteriumB. It confers property of drug resistanceC. It confers property of toxigenicityD. It endows the host with ability to conjugate |
| Answer» Correct Answer - A | |
| 52. |
Bacterial plasmids contain only DNA which isA. circular, dsB. cricular, ssC. linear, dsD. linear, ss |
| Answer» Correct Answer - A | |
| 53. |
The bacterial flagellum hasA. a basal granuleB. a hookC. a main filamentD. all of these |
| Answer» Correct Answer - D | |
| 54. |
In order to increase the yield of the cereal crops the farmer rotated the crop with pulses. The increase in yield occurred due to the action ofA. Clostridium butylicumB. Bacillus denitrificansC. Rhizobium leguminosarumD. Nitrosomonas |
| Answer» Correct Answer - C | |
| 55. |
Bacteria continue to live under conditions which resemble the conditions that prevailed on primitive earth, areA. PPLOB. ArchaebacteriaC. CyanobacteriaD. Chlamydia |
| Answer» Correct Answer - B | |
| 56. |
Mesosomes in bacteria are considered equivalent to mitochondria. What is correct for mesosomes ?A. They contain respiratory enzymes like cytochrome oxidase and dehydrogenaseB. They are infoldings of cell membrane to increase surface areaC. They are attached to nucleoid to provide energy during binary fission, and help in nucleoid separation and septa formationD. All of the above. |
| Answer» Correct Answer - D | |
| 57. |
The primitive prokaryotes responsibel for the production of biogas from the dung of ruminant animals includeA. ThermoacidophilesB. MethanogensC. EubacteriaD. Halophiles |
| Answer» Correct Answer - B | |
| 58. |
Blue green algae contain phycobilin. Which one is blue in colour ?A. PhycocyaninB. PhycoerythrinC. PhycocolloidD. All of the above |
| Answer» Correct Answer - A | |
| 59. |
Which of the following is NOT found in all bac- terial cells?A. cell membraneB. nucleoidC. ribosomesD. capsule |
| Answer» Correct Answer - D | |
| 60. |
Endospores are thick walled, dehydrated cells formed in scarcity of nutrients. These are formed inA. Bacillus and ClostridiumB. Bacillus and MucorC. Clostridium and SaccharomycesD. E. coli and Bacillus |
| Answer» Correct Answer - A | |
| 61. |
From where you will collect E. coli ?A. Human excretaB. On leavesC. WaterD. Human stomach |
| Answer» Correct Answer - A | |
| 62. |
On the basis of shape and staining Escherichia coli isA. Bacillus, Gram (-)veB. Coccus, Gram (-)veC. Spirillum, Gram (+)veD. Vibrio, Gram ( + )ve |
| Answer» Correct Answer - A | |
| 63. |
In blue green algae, attached to the freely lying thylakoids are present small granules containing photosynthetic pigments. These granules are calledA. phycobilisomesB. poly `beta`-hydroxybutyric acid (PBH) granulesC. plastidsD. chloroplast |
| Answer» Correct Answer - A | |
| 64. |
Vegetatively the members of cyanophyceae multiply byA. akinetesB. fragmentationC. formation of horomogoniaD. all of the above |
| Answer» Correct Answer - D | |
| 65. |
Gram (-) ve bacteria in Gram stain appearsA. redB. ColourlessC. blueD. orange |
| Answer» Correct Answer - C | |
| 66. |
The bacteria which do not retain the crystal violet of iodine stain when after washing with alcohol are included inA. Gram negativeB. Gram neutralC. Grame positiveD. AF +ve |
| Answer» Correct Answer - A | |
| 67. |
A unique amino acid in the cell wall of Bacteria and BGA isA. alanineB. glutamineC. aspartateD. diaminopimelic acid |
| Answer» Correct Answer - D | |