Q. No.What is true for the production of penicillin in a bioreactor?
I:
Penicillin is a secondary metabolite of certain species of Penicillium and is produced during active growth.
II:
Glucose inhibits penicillin production, whereas lactose does not.
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
2. Only II
3. Both I and II
4. Neither I nor II
Prickly pear cacti were introduced into Queensland, Australia as ornamental plants, starting in 1788. They quickly spread to cover over 25 million hectares of Australia by 1920, increasing by 1 million hectares per year. Digging, burning, and crushing all proved ineffective. The biocontrol agent used to control it was:
| 1. | Cactoblastis cactorum | 2. | Trichogramma minutum |
| 3. | Nematus ribesii | 4. | Icerya purchase |
Consider the given two statements:
| I: | Streptokinase is usually given only for a person's first heart attack. |
| II: | Only first heart attacks can be treated with a thrombolytic. |
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct and II is incorrect.
4. Both I and II are incorrect.
Monacolin K is chemically identical to:
1. cardiac glycosides
2. anti-cancer drug taxol
3. antibiotic penicillin
4. blood cholesterol lowering lovastatin
Nystatin, amphotericin B, and natamycin are antibiotics produced by different species of Streptomyces and are:
1. Anti fungal drugs
2. Anti bacterial drugs
3. Anti protozoan drugs
4. Anti cancer drugs
What do Lactobacillus acidophilus, Lactobacillus rhamnosus, Saccharomyces boulardii, Bifidobacterium bifidum have in common?
| 1. | They are common pathogens causing infections in immunocompromised patients |
| 2. | They are common probiotics that help in fighting pathogens in the human gut |
| 3. | They are the most common pathogens involved in urinary tract infections |
| 4. | They are organisms used to generate Single Cell Protein |
The strategy for biological pest control in which a large population of natural enemies is administered for quick pest control is called:
| 1. | Importation | 2. | Augmentation |
| 3. | Conservation | 4. | IPM |
Identify the incorrectly matched pair:
|
1. |
Chloramphenicol |
Streptomyces venezuelae |
|
2. |
Streptomycin |
Streptomyces griseus |
|
3. |
Tetracycline |
Streptomyces fradiae |
|
4. |
Puromycin |
Streptomyces alboniger |
Feedstocks used in the production of biogas can normally include all the following except:
| 1. | Animal waste | 2. | Sewage |
| 3. | Silage | 4. | Wood |
Beauveria, Metarhizium, and Paecilomyces are:
1. Mycorrhizal fungi
2. Biofertilizers
3. Entomopathogenic fungi
4. Edible fungi
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