Q. No.Hippodamia convergens is used as the biocontrol agent for:
1.
Mosquito larvae
2.
Aphids
3.
Bollworms
4.
Armyworms
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
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 |
Feedstocks used in the production of biogas can normally include all the following except:
| 1. | Animal waste | 2. | Sewage |
| 3. | Silage | 4. | Wood |
Statins act by selectively inhibiting:
| 1. | HMG CoA synthase | 2. | HMG CoA reductase |
| 3. | Thiolase | 4. | Mevalonate kinase |
Consider the given two statements:
| I: | If biogas is smelled anywhere windows and doors should be opened immediately. |
| II: | The content of toxic hydrogen sulfide has been responsible for serious accidents. |
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.
The correct chronology of steps involved in the anaerobic digestion during the production of biogas is:
| 1. | hydrolysis → acidogenesis → acetogenesis → methanogenesis. |
| 2. | hydrolysis → acetogenesis → acidogenesis → methanogenesis. |
| 3. | acetogenesis → acidogenesis → hydrolysis → methanogenesis. |
| 4. | acetogenesis → acidogenesis → methanogenesis → hydrolysis |
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