In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation. Which one of the following functions is not encoded by the host plant genes?
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Biotechnology Engineering · all questionsMicrobiology in Biotechnology
Microbiology in Biotechnology
practice.
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Which one of the following organisms is used for the determination of phenol coefficient of a disinfectant?
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Match the cell structures in Group I with the organisms in Group II.
| Group I | Group II |
| P. Endospores | 1. Methanobacterium |
| Q. Bipolar flagella | 2. Treponema |
| R. Pseudomurine in cell wall | 3. Spirillum |
| S. Periplasmic flagella | 4. Clostridium |
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Match the human diseases in Group I with the causative agents in Group II.
| List-I | List-II |
| P. Amoebiasis | 1. Leishmania donovani |
| Q. African sleeping sickness | 2. Trypanosoma cruzi |
| R. Kala azar | 3. Entamoeba histolytica |
| S. Chagas' disease | 4. Trypanosoma gambiense |
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Which one of the following organisms is an indicator of fecal contamination?
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Match the antibiotics in Group I with their modes of action in Group II.
| Group I | Group II |
| P. Chloramphenicol | 1. Inhibits protein synthesis by acting on 30S ribosomal subunit |
| Q. Rifampicin | Interferes with DNA replication by inhibiting DNA gyrase |
| R. Tetracycline | 3. Inhibits protein synthesis by acting on 50S ribosomal subunit |
| S. Quinolone | Interferes with RNA polymerase activity |
| 5. Inhibits P-lactamase activity |
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A list of pathogens (Group I) and a list of anti microbial agents (Group II) used to treat their infections are given below. Match the pathogens with the corresponding anti-microbial agents.
| Group I | Group II |
| P. Influenza A virus | 1. Isoniazid |
| Q. Fungus | 2. Amantadine |
| R. Plasmodium | 3. Fluconazole |
| S. Mycobacterium | 4. Artemisinin |
| 5. Iodoquinol |
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Which of the following are true with regard to anaerobic respiration in bacteria?
P. The final electron acceptor is an inorganic substance other than molecular oxygen.
Q. The number of ATP molecules produced per glucose molecule is more than that produced in aerobic respiration.
R. The number of ATP molecules produced per glucose molecule is less than that produced in aerobic respiration.
S. Only substrate level phosphorylation is used to generate ATP.
P. The final electron acceptor is an inorganic substance other than molecular oxygen.
Q. The number of ATP molecules produced per glucose molecule is more than that produced in aerobic respiration.
R. The number of ATP molecules produced per glucose molecule is less than that produced in aerobic respiration.
S. Only substrate level phosphorylation is used to generate ATP.
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Which of the following are true about bacterial superoxide dismutase?
P. Present in obligate aerobes.
Q. Present in facultative anaerobes.
R. Present in aerotolerant anaerobes.
S. Absent in obligate aerobes.
P. Present in obligate aerobes.
Q. Present in facultative anaerobes.
R. Present in aerotolerant anaerobes.
S. Absent in obligate aerobes.
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Match the drugs in Group I with their mechanism of action in Group II.
| Group I | Group II |
| P. Paclitaxel | 1. Inhibits protein translation |
| Q. Colchicine | 2. Inhibits microtubule depolymerization |
| R. Etoposide | 3. Inhibits DNA replication |
| S. Methotrexate | 4. Alkylates DNA |
| 5. Inhibits dihydrofolate reductase | |
| 6. Inhibits microtubule polymerization |
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Match the products in Group I with their respective organisms in Group II.
| Group I | Group II |
| P. Glycerol | 1. Corynebacterium glutamicum |
| Q. Glutamic acid | 2. Alcaligenes faecalis |
| R. Curdlan | 3. Dunaliella salina |
| S. Amphotericin B | 4. Streptomyces nodosus |
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Coronavirus genome consists of
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Match the viruses in Group I with their host cell receptors in Group II.
| Group I | Group II |
| P. Hepatitis A virus | 1. Heparan sulphate |
| Q. Human immunodeficiency virus | 2. Acetylcholine receptor |
| R. Rabies virus | 3. CD4 protein |
| S. Herpes simplex virus | 4. Alpha-2 macroglobulin |
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Which one of the following does not belong to the domain of Bacteria?
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Which one of the following organisms is responsible for crown gall disease in plants?
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Tetracycline inhibits the
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Which one of the following is an example of a neurotoxin?
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Match Group I with Group II.
| List-I | List-II |
| P. Staphylococcus aureus | 1. Biofilms |
| Q. Candida albicans | 2. Bacteriocins |
| R. Mycobacterium tuberculosis | 3. Methicillin resistance |
| S. Lactobacillus lactis | 4. Isoniazid |
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Match the industrial products mentioned in Group I with their producer organisms in Group II.
| Group I | Group II |
| P. Citric acid | 1. Trichoderma viride |
| Q. Cellulase | 2. Clostridium acetobutylicum |
| R. Vitamin B12 | 3. Aspergillus niger |
| S. Butanol | 4. Propionibacterium freudenreichii |
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Match items in Group I with Group II.
| Group I | Group II |
| P. Alzheimer's disease | 1. HINI |
| Q. Mad cow disease | 2. Hemoglobin |
| R. Sickle cell anemia | 3. Prions |
| S. Swine flu | 4. Amyloid |
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