Q. No.
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
Consider the given two statements:
| I: | Cyclosporin is used to treat and prevent graft-versus-host disease in bone marrow transplantation and to prevent rejection of kidney, heart, and liver transplants. |
| II: | It selectively inhibits the functions of B lymphocytes acting as an immunosuppressant. |
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.
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