Which of the following organisms cannot fix nitrogen?
Choose the correct answer from the options given below:
| A. | Azotobacter | B. | Oscillatoria |
| C. | Anabaena | D. | Volvox |
| E. | Nostoc | ||
| 1. | B only | 2. | E only |
| 3. | A only | 4. | D only |
Subtopic: Kingdom Monera: Blue Green Algae |
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Which one of the following is an example of ex-situ conservation?
1. Zoos and botanical gardens
2. Protected areas
3. National Park
4. Wildlife Sanctuary
1. Zoos and botanical gardens
2. Protected areas
3. National Park
4. Wildlife Sanctuary
Subtopic: Ex Situ Conservation of Biodiversity |
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Who is known as the father of Ecology in India?
1. Ram Udar
2. Birbal Sahni
3. S. R. Kashyap
4. Ramdeo Misra
1. Ram Udar
2. Birbal Sahni
3. S. R. Kashyap
4. Ramdeo Misra
Subtopic: Introduction |
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Given below are two statements :
| Statement I : | In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable. |
| Statement II : | DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repairing mechanism. |
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: RNA world |
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Given below are two statements :
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Transfer RNAs and ribosomal RNA do not interact with mRNA. |
| Statement II: | RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence. |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Translation Mechanism | Transcription |
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Match the List-I with List-II
Choose the correct answer from the options given below:
1. A-I, B-III, C-IV, D-II
2. A-III, B-I, C-IV, D-II
3. A-II, B-I, C-III, D-IV
4. A-IV, B-III, C-II, D-I
| List-I | List-II | ||
| A. | Heart | I. | Erythropoietin |
| B. | Kidney | II. | Aldosterone |
| C. | Gastro - intestinal tract | III. | Atrial natriuretic factor |
| D. | Adrenal Cortex | IV. | Secretin |
1. A-I, B-III, C-IV, D-II
2. A-III, B-I, C-IV, D-II
3. A-II, B-I, C-III, D-IV
4. A-IV, B-III, C-II, D-I
Subtopic: Adrenal Cortex: Aldosterone | Hormones of Heart, Kidney and Gastrointestinal Tract |
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All living members of the class Cyclostomata are:
| 1. | Symbiotic | 2. | Ectoparasite |
| 3. | Free living | 4. | Endoparasite |
Subtopic: Class Cyclostomata |
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Streptokinase produced by bacterium Streptococcus is used for
| 1. | Liver disease treatment |
| 2. | Removing clots from blood vessels |
| 3. | Curd production |
| 4. | Ethanol production |
Subtopic: Chemicals, Enzymes & Other Bioactive Molecules |
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Role of the water vascular system in Echinoderms is:
Choose the correct answer from the options given below:
1. B and C only
2. B, D and E only
3. A and B only
4. A and C only
| A. | Respiration and locomotion |
| B. | Excretion and locomotion |
| C. | Capture and transport of food |
| D. | Digestion and respiration |
| E. | Digestion and excretion |
1. B and C only
2. B, D and E only
3. A and B only
4. A and C only
Subtopic: Phylum Echinodermata |
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Match List-I with List-II
Choose the option with all correct matches.
| List-I | List-II | ||
| A. | Pteridophyte | I. | Salvia |
| B. | Bryophyte | II. | Ginkgo |
| C. | Angiosperm | III. | Polystrichum |
| D. | Gymnosperm | IV. | Salvinia |
| 1. | A-III, B-IV, C-I, D-II | 2. | A-IV, B-III, C-II, D-I |
| 3. | A-III, B-IV, C-II, D-I | 4. | A-IV, B-III, C-I, D-II |
Subtopic: Miscellaneous |
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