Silencing of specific mRNA is possible via RNAi because of -
| 1. | Complementary tRNA | 2. | Non-complementary ssRNA |
| 3. | Complementary dsRNA | 4. | Inhibitory ssRNA |
Subtopic: Other GM Crops |
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Level 2: 60%+
NEET - 2025
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Which one of the following equations represent the Verhulst-Pearl Logistic Growth of population?
| 1. | \(\frac{d \mathrm{~N}}{d t}=r N\left(\frac{N-K}{N}\right) \) | 2. | \(\frac{d N}{d t}=N\left(\frac{r-K}{K}\right) \) |
| 3. | \(\frac{d N}{d t}=r\left(\frac{K-N}{K}\right) \) | 4. | \(\frac{d N}{d t}=r N\left(\frac{K-N}{K}\right)\) |
Subtopic: Population: Logistic Growth Model |
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Level 2: 60%+
NEET - 2025
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Epiphytes, that are growing on the mango branch, is an explanation of which of the following?
| 1. | Predation | 2. | Amensalism |
| 3. | Commensalism | 4. | Mutualism |
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
77%
Level 2: 60%+
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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: | Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it. |
| Statement II: | Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp. |
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: Population Interactions: Commensalism, Protocooperation & Mutualism |
Level 4: Below 35%
NEET - 2025
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from this options given below.
| Statement I: | The primary source of energy in an ecosystem is solar energy. |
| Statement II: | The rate of production of organic matter photosynthesis in an ecosystem is called net primary productivity (NPP). |
| 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: Ecosystem Productivity | Energy Flow |
65%
Level 2: 60%+
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Which of the following is the unit of productivity of an ecosystem?
1. \(\mathrm{KCal} \mathrm{~m}^{-3} \)
2. \(\left(\mathrm{KCal} \mathrm{~m}^{-2}\right) \mathrm{yr}^{-1} \)
3. \(\mathrm{gm}^{-2}\)
4. \(\mathrm{KCal} \mathrm{~m}^{-2}\)
1. \(\mathrm{KCal} \mathrm{~m}^{-3} \)
2. \(\left(\mathrm{KCal} \mathrm{~m}^{-2}\right) \mathrm{yr}^{-1} \)
3. \(\mathrm{gm}^{-2}\)
4. \(\mathrm{KCal} \mathrm{~m}^{-2}\)
Subtopic: Ecosystem Productivity |
79%
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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: | In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers. |
| Statement II: | Ecosystems are exempted from 2nd law of thermodynamics. |
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: Energy Flow |
61%
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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 |
83%
Level 1: 80%+
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Match List-I with List-II:
Choose the options with all correct matches.
1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-II, D-IV
| List-I | List-II | ||
| A. | The Evil Quartet | I. | Cryopreservation |
| B. | Ex-situ | II. | Alien species invasion |
| C. | Lantana camara | III. | Causes of biodiversity losses |
| D. | Dodo | IV. | Extinction |
1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-II, D-IV
Subtopic: Loss of Biodiversity | Biodiversity Conservation |
80%
Level 1: 80%+
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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 |
76%
Level 2: 60%+
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