The precursor for penicillin-G biosynthesis during fermentation process is
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Biotechnology Engineering · all questionsMicrobial Biotechnology
Microbial Biotechnology
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Which of the following eukaryotic organisms has been proven to be of great industrial importance?
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Oils rich in PUFA are not desirable for biodiesel production because
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Match the products in Group I with their ppossible applications in Group II.
| Group I | Group II |
| P. Erythropoietin | 1. Blood clot |
| Q. Anti-fibrin 99 | 2. Binding and transport of iron |
| R. Collagenase | 3. Anaemia |
| S. S. Transferrin | 4. Animal cell separation |
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Match the recombinant products in Group I with their therapeutic applications in Group II.
| Group I | Group II |
| P. Human growth hormone | 1. Pituitary dwarfism |
| Q. Platelet growth factor | 2. Chemotherapy induced thrombocytopenia |
| R. Factor VIII | 3. Hemophilia |
| S. Erythropoietin | 4. Anemia associated with chronic renal failure |
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Identify the statement that is not correct
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Examine the data given below in the table on purification of a protein X.
The yield percent and purification factor, respectively, at the end of the experiment will be approximately
| Step | Volume (mL) | Protein Concentration (mg mL-1) | Enzyme Activity (unit mL-1) |
| Crude cell-free extract | 500 | 12.0 | 5.0 |
| Ammonium sulfate precipitation | 125 | 3.0 | 11.0 |
| Ion-exchange chromatography | 10 | 9.0 | 75.0 |
The yield percent and purification factor, respectively, at the end of the experiment will be approximately
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Match the activity spectrum of the following antibiotics.
| Group I | Group II |
| P. Actinomycin D | 1. Antifungal |
| Q. Daunorubicin | 2. Antituberculosis |
| R. Rifamycin | 3. Antitumor |
| S. Griseofulvin | 4. Antiprotozoal |
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Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose.
Reason: Methanol has a greater degree of reductance compared to glucose.
Assertion: Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose.
Reason: Methanol has a greater degree of reductance compared to glucose.
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Match the products in Group I with their producer organisms given in Group II.
| Group I | Group II |
| P. Ethanol | 1. Streptomyces orientalis |
| Q. L-Lysine | 2. Saccharomyces cerevisiae |
| R. Biopesticide | 3. Corynebacterium glutanicum |
| S. Vancomycin | 4. Bacillus thuringiensis |
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Which of the following essential element(s) is/are required as major supplement to enhance the bioremediation of oil spills by the resident bacteria?
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Match the industrial application of the following enzymes.
| Group I | Group II |
| P. Penicillinase | 1. Pharmaceutical |
| Q. Pectinase | 2. Leather |
| R. Trypsin | 3. Wine |
| S. Rennin | 4. Dairy |
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Match the commercial microbial sources in Group I with the products in Group II.
| Group I | Group II |
| P. Corynebacterium lilium | 1. 2, 3-Butane di-ol |
| Q. Klebsiella oxytoca | 2. Poly-β-hydroxybutyric acid |
| R. Aspergillus niger | 3. Glutamic acid |
| S. Alcaligenes eutrophus | 4. Citric acid |
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Match enzymes in Group I with their corresponding industrial application in Group II.
| Group I | Group II |
| P. Amylase | 1. Laundry detergent |
| Q. Invertase | 2. Fruit juice clarification |
| R. Pectinase | 3. Liquefaction of sucrose |
| S. Xylanase | 4. Pulp and paper processing |
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In secondary metabolism, two distinct phases - trophophase and idiophase refer, respectively, to
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The two columns given below indicate some of the fermentation products and the microbial cultures used for their production. Identify the correct set of groups from the four options.
| Fermentation products | Microbial cultures |
| P. Ethanol | 1. Aspergillus niger |
| Q. Streptomycin | 2. Zymomonas mobilis |
| R. Citric acid | 3. Streptomyces griseus |
| S. Cellulase | 4. Trichoderma reesei |
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Match the following marker genes in Group I with suitable selecting agent in Group II.
| Group I | Group II |
| P. nptII | 1. Glyphosate |
| Q. aroA | 2. Phosphinothricin |
| R. hpt | 3. Kanamycin |
| S. bar | 4. Hygromycin B |
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During a positive-negative selection process, transformed animal cells expressing . . . . . . . . are killed in presence of ganciclovir in the medium.
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Microbes bring about biological transformation of xenobiotic compounds by
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Match the products in Group I with their producer organisms in Group II.
| Group I | Group II |
| P. Ethanol from glucose | 1. Aspergillus niger |
| Q. Probiotics | 2. Leuconostoc mesenteroides |
| R. Citric acid | 3. Saccharomyces cerevisiae |
| S. Sauerkraut | 4. Bifidobacterium |
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