Transfer of pollen grains from anther to stigma of another flower of same plant is known as:
1.
Geitonogamy
2.
Xenogamy
3.
Autogamy
4.
Cleistogamy
Subtopic: Pollination & Outbreeding Devices |
88%
Level 1: 80%+
NEET - 2023
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The phenomenon which is influenced by auxin and also played a major role in its discovery is:
| 1. | Phototropism | 2. | Root initiation |
| 3. | Gravitropism | 4. | Apical Dominance |
Subtopic: Growth Hormones & Auxin |
64%
Level 2: 60%+
NEET - 2023
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The transverse section of plant part showed polyarch, radial and exarch xylem, with endodermis and pericycle. The plant part is identified as:
| 1. | Monocot root | 2. | Dicot root |
| 3. | Dicot stem | 4. | Monocot stem |
Subtopic: Anatomy of Root |
76%
Level 2: 60%+
NEET - 2023
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What will happen if fresh water lake gets contaminated by the addition of polluted water with high BOD?
| 1. | Amount of dissolved oxygen in the lake will decrease. |
| 2. | The lake will remain unaffected |
| 3. | Number of submerged aquatic plants in the lake will increase |
| 4. | Number of aquatic animals in the lake will increase. |
Subtopic: Water Pollution |
83%
Level 1: 80%+
NEET - 2023
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The last chromosome sequenced in Human Genome project was:
| 1. | Chromosome 6 | 2. | Chromosome 1 |
| 3. | Chromosome 22 | 4. | Chromosome 14 |
Subtopic: Human Genome Project |
77%
Level 2: 60%+
NEET - 2023
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The amount of nutrients such as carbon, nitrogen, potassium and calcium present in the soil at any given time is referred to as:
| 1. | Standing state | 2. | Standing crop |
| 3. | Humus | 4. | Detritus |
64%
Level 2: 60%+
NEET - 2023
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Plants offer rewards to animals in the form of pollen and nectar and the animals facilitate the pollination process. This is an example of:
| 1. | Amensalism | 2. | Competition |
| 3. | Commensalism | 4. | Mutualism |
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
91%
Level 1: 80%+
NEET - 2023
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The species of plants that plays a vital role in controlling the relative abundance of other species in a community is called _______.
1. alien species
2. endemic species
3. exotic species
4. keystone species
1. alien species
2. endemic species
3. exotic species
4. keystone species
Subtopic: Importance of Biodiversity |
64%
Level 2: 60%+
NEET - 2023
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (A) | Pteropsida | (I) | Psilotum |
| (B) | Lycopsida | (II) | Equisetum |
| (C) | Psilopsida | (III) | Adiantum |
| (D) | Sphenopsida | (IV) | Selaginella |
| Options: | (A) | (B) | (C) | (D) |
| 1. | II | III | I | IV |
| 2. | III | I | IV | II |
| 3. | II | III | IV | I |
| 4. | III | IV | I | II |
Subtopic: Pteridophytes |
79%
Level 2: 60%+
NEET - 2023
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Subtopic: Carbohydrates: Cellulose, Chitin, Inulin & Agar |
84%
Level 1: 80%+
NEET - 2023
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