Which of the following hormones is associated with phototropic and geotropic movement plants?
1. Ethylene
2. GA
3. ABA
4. Auxin
Subtopic: Â Auxin Function |
 85%
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Which of the following locations in plants have the highest concentration of auxin?
1. Young fruits
2. Shoot apices
3. Vascular cambium
4. Leaves
1. Young fruits
2. Shoot apices
3. Vascular cambium
4. Leaves
Subtopic: Â Growth Hormones & Auxin |
 84%
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How many of the following PGRs can behave as growth inhibitors?
a. Ethylene
b. GA
c. ABA
d. Cytokinin
1. One
2. Two
3. Three
4. Four
a. Ethylene
b. GA
c. ABA
d. Cytokinin
1. One
2. Two
3. Three
4. Four
 82%
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Subtopic: Â Cytokinin |
 88%
From NCERT
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Which of the following carotenoid-derived PGRs is an antagonist to terpene-derived PGRs?
1. ABA
2. Ethylene
3. Cytokinin
4. GA
1. ABA
2. Ethylene
3. Cytokinin
4. GA
Subtopic: Â Abscisic Acid |
 84%
From NCERT
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Which of the following adenine derivatives may behave as an antagonist to indole compounds?
1. Kinetin
2. 2, 4-D
3. IAA
4. NAA
1. Kinetin
2. 2, 4-D
3. IAA
4. NAA
Subtopic: Â Growth Hormones & Auxin |Â Abscisic Acid |
 83%
From NCERT
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"Certain region of plant shows tumourous growth". This is a result of
| 1. | Differentiation |
| 2. | Dedifferentiation |
| 3. | Redifferentiation |
| 4. | Both Differentiation and redifferentiation |
Subtopic: Â Growth |Â Differentiation, Dedifferentiation and Redifferentiation |
 59%
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"Cells positioned away from root apical meristem differentiate as root cap cells, while those pushed to the periphery mature as epidermis". This is evidence for
1. Open form of differentiation in plants
2. Closed form of differentiation in plants
3. Closed form dedifferentiation in plants
4. Open form of dedifferentiation in plants
1. Open form of differentiation in plants
2. Closed form of differentiation in plants
3. Closed form dedifferentiation in plants
4. Open form of dedifferentiation in plants
Subtopic: Â Growth |Â Differentiation, Dedifferentiation and Redifferentiation |
 76%
From NCERT
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Which of the following elements for growth does not affect all phases of growth?
1. Light
2. Water
3. Oxygen
4. Temperature
1. Light
2. Water
3. Oxygen
4. Temperature
Subtopic: Â Growth |
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In arithmetic growth, which of the following features is not found?
| 1. | One cell per generation is added |
| 2. | r represents elongation per unit of time |
| 3. | Exhibit the J-shape curve on the graph |
| 4. | Elongation of the root is an example of this type of growth |
Subtopic: Â Growth |
 80%
From NCERT
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