Which hormone promotes internode/petiole elongation in deep water rice?
1.2, 4-D 2.GA3
3.Kinetin 4.Ethylene 
Subtopic:  Ethylene |
 69%
From NCERT
NEET - 2023
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In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as 
1. Senescence  2. Differentiation 
3. Dedifferentiation  4. Development 
Subtopic:  Differentiation, Dedifferentiation and Redifferentiation |
 57%
NEET - 2023
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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 Acid2.Indole-3-butyric Acid
3.Gibberellic Acid4.Zeatin
Subtopic:  Gibberellin |
 78%
From NCERT
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 | Photoperiodism (OLD NCERT) |
 62%
From NCERT
NEET - 2023
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Match List - I with List - II
List - I List - II
(A) Auxin (I) Promotes female flower formation in cucumber
(B) Gibberellin (II) Overcoming apical dominance
(C) Cytokinin (III) Increase in the length of grape stalks
(D) Ethylene (IV) Promotes flowering in pineapple

Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. II I IV III
2. IV III II I
3. I III IV II
4. III II I IV
Subtopic:  Auxin Function | Gibberellin | Cytokinin | Ethylene |
 85%
From NCERT
NEET - 2023
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Which of the following statements is not correct?
 
1. Phase of cell elongation of plant cells is characterized by increased vacuolation.
2. Cells in the meristematic phase of growth exhibit abundant plasmodesmatal connections
3. Plant growth is generally determinate
4. Plant growth is measurable
Subtopic:  Growth |
 79%
From NCERT
NEET - 2023
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Which one of the following plants does not show plasticity?
1. Maize 
2. Cotton 
3. Coriander 
4. Buttercup
Subtopic:  Development |
 83%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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The gaseous plant growth regulator is used in plants to:
1. kill dicotyledonous weeds in the fields
2. speed up the malting process
3. promote root growth and root hair formation to increase the absorption surface
4. help overcome apical dominance
Subtopic:  Ethylene |
 74%
From NCERT
NEET - 2022
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Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in plants?

1.Cytokinin2.ABA
3.Gibberellin4.Ethylene

Subtopic:  Ethylene |
 76%
From NCERT
NEET - 2022
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The living differentiated cells, that lost the capacity to divide anymore, can regain the capacity of division under certain conditions. This phenomenon is termed as:

1.Redifferentiation 2.Maturation 
3.Differentiation 4.Dedifferentiation 

Subtopic:  Differentiation, Dedifferentiation and Redifferentiation |
 73%
From NCERT
NEET - 2022
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