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Q. No.Seed germination is inhibited by ABA in antagonism with:
1. Auxins
2. Ethylene
3. Kinetins
4. GAs
Subtopic: Gibberellin | Abscisic Acid |
85%
Level 1: 80%+
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Match List I with List II
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | IAA | I. | Bolting |
| B. | ABA | II. | Ripening of Fruits |
| C. | GA | III. | Weed Free Lawns |
| D. | Ethylene | IV. | Stomatal Closure |
Choose the correct answer from the options given below:
| 1. | A ‐ IV , B ‐ III , C ‐ II , D ‐ I |
| 2. | A ‐ III , B ‐ IV , C ‐ I , D ‐ II |
| 3. | A ‐ IV , B ‐ III , C ‐ I , D ‐ II |
| 4. | A ‐ III , B ‐ IV , C ‐ II , D ‐ I |
Subtopic: Auxin Function | Gibberellin | Ethylene | Abscisic Acid |
83%
Level 1: 80%+
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Cytokinins help
| 1. | To retain chlorophyll |
| 2. | In promoting cell division |
| 3. | In overcoming apical dominance |
| 4. | More than one option is correct |
Subtopic: Cytokinin |
76%
Level 2: 60%+
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Which of the following phytohormones is responsible for ripening of fruits and increasing the number of female flowers in cucumbers?
| 1. | Auxin | 2. | Ethylene |
| 3. | Gibberellin | 4. | Cytokinin |
Subtopic: Ethylene |
92%
Level 1: 80%+
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Deposition of new materials inside the cell wall of cells starts in
1. Meristematic phase
2. Reproductive phase
3. Maturation phase
4. Elongation phase
1. Meristematic phase
2. Reproductive phase
3. Maturation phase
4. Elongation phase
Subtopic: Growth |
57%
Level 3: 35%-60%
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Which phase of a sigmoid curve explains the initial phase of growth when growth rate is very slow?
1. Log phase
2. Lag phase
3. stationary phase
4. Maturation phase
1. Log phase
2. Lag phase
3. stationary phase
4. Maturation phase
Subtopic: Growth | Growth Model |
81%
Level 1: 80%+
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__________ curve is obtained for cells in culture.
1. J-shaped
2. Linear
3. V-shaped
4. S-shaped
1. J-shaped
2. Linear
3. V-shaped
4. S-shaped
Subtopic: Growth | Growth Model |
72%
Level 2: 60%+
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A Leaf of 20 cm2 grows 5 cm2 per hour and B Leaf of 25 cm2 grows 5 cm2 per hour
The relative growth rate of leaf A and B respectively is
1. 25% and 20%
2. 20% and 25%
3. 50% and 100%
4. 25% and 50%
The relative growth rate of leaf A and B respectively is
1. 25% and 20%
2. 20% and 25%
3. 50% and 100%
4. 25% and 50%
Subtopic: Growth | Growth Model |
67%
Level 2: 60%+
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What happens to the growth of roots during water logging conditions?
1. Growth is accelerated
2. Growth is inhibited
3. Growth remains constant
4. First growth is accelerated and then stops
1. Growth is accelerated
2. Growth is inhibited
3. Growth remains constant
4. First growth is accelerated and then stops
Subtopic: Growth |
Level 3: 35%-60%
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Which of the following is not a function of water in plants?
1. It is responsible for cell elongation
2. It maintains the turgidity of cells
3. It acts as a source of energy
4. It provides medium for enzymatic activities
1. It is responsible for cell elongation
2. It maintains the turgidity of cells
3. It acts as a source of energy
4. It provides medium for enzymatic activities
Subtopic: Growth |
72%
Level 2: 60%+
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