Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin
| 1. | promotes abscission of mature leaves only. |
| 2. | does not affect mature monocotyledonous plants. |
| 3. | can help in cell division in grasses, to produce growth. |
| 4. | promotes apical dominance |
Subtopic: Â Growth Hormones & Auxin |Â Auxin Function |
 70%
Level 2: 60%+
NEET - 2024
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Lecithin, a small molecular weight organic compound found in living tissues, is an example of:
1. Phospholipids
2. Glycerides
3. Carbohydrates
4. Amino acids
1. Phospholipids
2. Glycerides
3. Carbohydrates
4. Amino acids
Subtopic: Â Lipids |
 81%
Level 1: 80%+
NEET - 2024
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Match List-I and List-II:
Choose the correct answer from the options given below:
| List-I | List-II | ||
| A. | Two or more alternative forms of a gene | I. | Back Cross |
| B. | Cross of F1 progeny with homozygous recessive parent | II. | Ploidy |
| C. | Cross of F1 progeny with any of the parents | III. | Allele |
| D. | Number of chromosome sets in plant |
IV. | Test cross |
| 1. | A-II, B-I, C-III, D-IV | 2. | A-III, B-IV, C-I, D-II |
| 3. | A-IV, B-III, C-II, D-I | 4. | A-I, B-II, C-III, D-IV |
Subtopic: Â Monohybrid Cross: 1 |
 89%
Level 1: 80%+
NEET - 2024
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Identify the set of correct statements:
Choose the correct answer from the options given below:
1. A, B, C and D only
2. A, C, D and E only
3. B, C, D and E only
4. C, D and E only
| A: | The flowers of Vallisneria are colourful and produce nectar. |
| B: | The flowers of waterlily are not pollinated by water. |
| C: | In most of water-pollinated species, the pollen grains are protected from wetting. |
| D: | Pollen grains of some hydrophytes are long and ribbon like. |
| E: | In some hydrophytes, the pollen grains are carried passively inside water. |
1. A, B, C and D only
2. A, C, D and E only
3. B, C, D and E only
4. C, D and E only
Subtopic: Â Pollination & Outbreeding Devices |
 74%
Level 2: 60%+
NEET - 2024
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Subtopic: Â Loss of Biodiversity |
 89%
Level 1: 80%+
NEET - 2024
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A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and downstream end:
1. Structural gene, Transposons, Operator gene
2. Inducer, Repressor, Structural gene
3. Promotor, Structural gene, Terminator
4. Repressor, Operator gene, Structural gene
1. Structural gene, Transposons, Operator gene
2. Inducer, Repressor, Structural gene
3. Promotor, Structural gene, Terminator
4. Repressor, Operator gene, Structural gene
Subtopic: Â Transcription: I |
 89%
Level 1: 80%+
NEET - 2024
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In the given figure, which component has thin outer walls and highly thickened inner walls?
1. D
2. A
3. B
4. C
1. D
2. A
3. B
4. C
Subtopic: Â Epidermal Tissue System |
 76%
Level 2: 60%+
NEET - 2024
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Hind II always cuts DNA molecules at a particular point called recognition sequence and it consists of:
| 1. | 6 bp | 2. | 4 bp |
| 3. | 10 bp | 4. | 8 bp |
Subtopic: Â Restriction Enzymes - Main Enzymes |Â Restriction Enzymes: Historical Background |
 82%
Level 1: 80%+
NEET - 2024
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Which of the following is an example of actinomorphic flower?
1. Cassia
2. Pisum
3. Sesbania
4. Datura
1. Cassia
2. Pisum
3. Sesbania
4. Datura
Subtopic: Â Flower & Parts of Flower |
 78%
Level 2: 60%+
NEET - 2024
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The equation of Verhulst-Pearl logisitic growth model is
\(\dfrac {dN}{dt}=rN \left[\dfrac {K-N}{K}\right ]\)
From this equation, K indicates:
1. Biotic potential
2. Carrying capacity
3. Population density
4. Intrinsic rate of natural increase
\(\dfrac {dN}{dt}=rN \left[\dfrac {K-N}{K}\right ]\)
From this equation, K indicates:
1. Biotic potential
2. Carrying capacity
3. Population density
4. Intrinsic rate of natural increase
Subtopic: Â Population: Logistic Growth Model |
 86%
Level 1: 80%+
NEET - 2024
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