Q. No.Subtopic: Â Gibberellin |
 89%
From NCERT
AIPMT - 2007
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Cell elongation in internodal regions of the green plants takes place due to:
| 1. | Cytokinins | 2. | Gibberellins |
| 3. | Ethylene | 4. | Indole acetic acid |
Subtopic: Â Gibberellin |
 71%
From NCERT
AIPMT - 2004
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Parthenocarpic tomato fruits can be produced by:
| 1. | removing androecium of flowers before pollen grains are released |
| 2. | treating the plants with low concentrations of gibberellic acid and auxins |
| 3. | raising the plants from vernalised seeds |
| 4. | treating the plants with phenylmercuric acetate |
Subtopic: Â Auxin Function |Â Gibberellin |
 67%
From NCERT
AIPMT - 2006
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Which one of the following pairs is not correctly matched?
| 1. | Abscisic acid - Stomatal closure |
| 2. | Gibberellic acid - Leaves fall |
| 3. | Cytokinin - Cell division |
| 4. | IAA - Cell wall elongation |
Subtopic: Â Gibberellin |
 74%
From NCERT
AIPMT - 2007
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Match the Following:
|
Column I |
Column II |
|
A. IAA B. ABA C. Ethylene D. GA E. Cytokinin |
1. Herring sperm DNA. 2. Bolting 3. Stomatal closure 4. Weed-free lawns 5. Ripening of fruits. |
Codes
| Options: | A | B | C | D | E |
| 1. | 4 | 3 | 5 | 2 | 1 |
| 2. | 5 | 3 | 4 | 2 | 1 |
| 3. | 4 | 1 | 4 | 3 | 2 |
| 4. | 5 | 3 | 2 | 4 | 4 |
Subtopic: Â Auxin Function |Â Gibberellin |Â Cytokinin |Â Ethylene |Â Abscisic Acid |
 93%
From NCERT
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To increase sugar production in sugarcanes, they are sprayed with
1. IAA
2. cytokinin
3. gibberellin
4. ethylene
Subtopic: Â Gibberellin |
 95%
From NCERT
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Spraying sugarcane crop with which of the following plant growth regulators, increases the length of the stem, thus, increasing the yield?
| 1. | Gibberellin | 2. | Cytokinin |
| 3. | Abscisic acid | 4. | Auxin |
Subtopic: Â Gibberellin |
 80%
From NCERT
NEET - 2024
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Match List-I with List-II
Choose the correct answer from the options given below:
1. A-III, B-I, C-IV, D-II
2. A-II, B-III, C-IV, D-I
3. A-IV, B-II, C-I, D-III
4. A-III, B-IV, C-I, D-II
| List-I | List-II | ||
| A. | Ethylene | I. | Increase length of stem |
| B. | Cytokinins | II. | Promotion of senescence and abscission |
| C. | ABA | III. | Delaying leaf senescence |
| D. | Gibberellins | IV. | Inhibition of seed germination |
1. A-III, B-I, C-IV, D-II
2. A-II, B-III, C-IV, D-I
3. A-IV, B-II, C-I, D-III
4. A-III, B-IV, C-I, D-II
Subtopic: Â Gibberellin |Â Cytokinin |Â Ethylene |Â Abscisic Acid |
 88%
From NCERT
NEET - 2024
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Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?
| 1. | Abscisic Acid | 2. | Indole-3-butyric Acid |
| 3. | Gibberellic Acid | 4. | Zeatin |
Subtopic: Â Gibberellin |
 78%
From NCERT
NEET - 2023
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Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.
1. Gibberellin
2. Ethylene
3. Abscisic acid
4. Cytokinin
Subtopic: Â Gibberellin |
 88%
From NCERT
NEET - 2020
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