In a pea flower, five petals are arranged in a specialized manner with one posterior, two lateral and two anterior. These are named as___________, ____________ and ________ respectively.
1. Keel, Wings and standard
2. Vexillum, Keel and standard
3. Keel, Standard and Carina
4. Standard, Wings and Keel
1. Keel, Wings and standard
2. Vexillum, Keel and standard
3. Keel, Standard and Carina
4. Standard, Wings and Keel
Subtopic: Flower & Parts of Flower |
75%
Level 2: 60%+
NEET - 2023
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In which of the following sets of families, the pollen grain are viable for months?
1. Solanaceae, Poaceae and Liliaceae
2. Brassicaceae, Liliaceae and Poaceae
3. Rosaceae, Liliaceae and Poaceae
4. Leguminosae, Solanaceae and Rosaceae
1. Solanaceae, Poaceae and Liliaceae
2. Brassicaceae, Liliaceae and Poaceae
3. Rosaceae, Liliaceae and Poaceae
4. Leguminosae, Solanaceae and Rosaceae
Subtopic: Stamen: Microsporangium | Stamen: Male Gametophyte |
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Level 1: 80%+
NEET - 2023
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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 |
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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 |
62%
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 |
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Level 2: 60%+
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 |
78%
Level 2: 60%+
NEET - 2023
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The rate of decomposition is faster in detritus that is rich in:
1. Lignin and chitin
2. Cellulose and starch
3. Phosphates and proteins
4. Sugars and nitrogen
1. Lignin and chitin
2. Cellulose and starch
3. Phosphates and proteins
4. Sugars and nitrogen
Subtopic: Decomposition |
70%
Level 2: 60%+
Please attempt this question first.
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Please attempt this question first.
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%+
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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 |
62%
Level 2: 60%+
NEET - 2023
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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 |
80%
Level 1: 80%+
NEET - 2023
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