Which of the following is wrongly matched in the given table?
| Microbe | Product | Application | |
| 1. | Monascus purpureus | Statins | Lowering of blood cholesterol |
| 2. | Streptococcus | Streptokinase | Removal of clot from blood vessel |
| 3. | Clostridium butylicum | Lipase | Removal of oil stains |
| 4. | Trichoderma polysporum | Cyclosporin-A | Immunosuppressive |
Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?
1. Aspergillus and Rhizopus
2. Rhizobium and Rhizopus
3. Cyanobacteria and Rhizobium
4. Aspergillus and Cyanobacteria
Which of the following is put into anaerobic sludge digester for further sewage treatment?
| 1. | Floating debris | 2. | Effluents of primary treatment |
| 3. | Activated sludge | 4. | Primary sludge |
Match List - I with List - II
| List - I | List - II |
| (a) Protoplast fusion | (i) Totipotency |
| (b) Plant tissue culture | (ii) Pomato |
| (c) Meristem culture | (iii) Somaclones |
| (d) Micropropagation | (iv) Virus free plants |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iii) | (iv) | (ii) | (i) |
| 4. | (ii) | (i) | (iv) | (iii) |
| 1. | when N nears the carrying capacity of the habitat |
| 2. | when N/K equals zero |
| 3. | when the death rate is greater than the birth rate |
| 4. | when N/K is exactly one |
Between which of the following, the relationship is not an example of commensalism?
| 1. | Orchid and the tree on which it grows |
| 2. | Cattle Egret and grazing cattle |
| 3. | Sea Anemone and Clownfish |
| 4. | Female wasp and fig species |
The primary producers of the deep-sea hydrothermal vent ecosystem are:
1. green algae
2. chemosynthetic bacteria
3. blue-green algae
4. coral reefs
In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?
| 1. | Gross primary productivity is always more than Net primary productivity. |
| 2. | Gross primary productivity and Net primary productivity are one and the same. |
| 3. | There is no relationship between Gross primary productivity and Net primary productivity. |
| 4. | Gross primary productivity is always less than net primary productivity. |
Which of the following statements is not correct?
| 1. | Pyramid of energy is always upright. |
| 2. | Pyramid of numbers in a grassland ecosystem is upright. |
| 3. | Pyramid of biomass in sea is generally inverted. |
| 4. | Pyramid of biomass in sea is generally upright. |
1. Biopiracy
2. Bioenergetics
3. Bioremediation
4. Bioprospecting
© 2026 GoodEd Technologies Pvt. Ltd.