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Subtopic: Abscisic Acid |
72%
Level 2: 60%+
AIIMS - 2002
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Pruning of plants promotes branching because the auxillary buds get sensitized to:-
1. ethylene
2. gibberellin
3. cytokinin
4. indole acetic acid
Subtopic: Growth Hormones & Auxin |
59%
Level 3: 35%-60%
AIIMS - 2004
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Phytohormones are?
| 1. | hormones regulating growth from seed to adulthood |
| 2. | growth regulators synthesised by plants and influencing physiological process |
| 3. | hormones regulating flowering |
| 4. | hormones regulating secondary growth |
Subtopic: Growth Hormones & Auxin |
69%
Level 2: 60%+
AIIMS - 2008
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86%
Level 1: 80%+
AIIMS - 2010
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Abscisic acid is known as the stress hormone because it
| 1. | breaks seed dormancy |
| 2. | induces flowering |
| 3. | promotes leaf fall |
| 4. | promotes closure of stomata |
Subtopic: Abscisic Acid |
80%
Level 1: 80%+
AIIMS - 2012
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Which of the following plant growth regulators (PGRs) promotes root initiation, flowering and
induced parthenocarpy?
| 1. | Gibberellin | 2. | Auxin |
| 3. | Cytokinin | 4. | Ethylene |
Subtopic: Growth Hormones & Auxin |
85%
Level 1: 80%+
AIIMS - 2013
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Vernalisation is subjected to plants growing in ?
(1) tropical
(2) sub tropical areas
(3) temperate areas
(4) hot region/arctic region
53%
Level 3: 35%-60%
AIIMS - 2014
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Gibberellins can promote seed germination because of their influence on
| 1. | rate of cell division |
| 2. | production of hydrolyzing enzymes |
| 3. | synthesis of abscisic acid |
| 4. | absorption of water through hard seed coat |
Subtopic: Gibberellin |
51%
Level 3: 35%-60%
AIIMS - 2015
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One hormone hastens maturity period in juvenile conifers, a second hormone controls xylem differentiation, while the third hormone increases the tolerance of plants to various stresses.They are respectively:-
| 1. | Gibberellin, Auxin, Ethylene |
| 2. | Auxin, Gibberellin, Cytokinin |
| 3. | Gibberellin, Auxin, ABA |
| 4. | Auxin, Gibberellin, ABA |
Subtopic: Growth Hormones & Auxin | Gibberellin | Abscisic Acid |
80%
Level 1: 80%+
AIIMS - 2016
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Identify the incorrect statement about ABA growth regulator.
| 1. | It increases the tolerance of plants against different stresses. |
| 2. | It acts as general plant growth inhibitor and inhibitor of metabolism. |
| 3. | It helps in seed maturation and dormancy. |
| 4. | It promotes morphogenesis and differentiation of shoots. |
Subtopic: Abscisic Acid |
76%
Level 2: 60%+
AIIMS - 2017
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