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Q. No.Plant growth is a cumulative effect of:
1. Only genomic control
2. Only intrinsic controls
3. Only extrinsic controls
4. Both extrinsic and intrinsic control
Subtopic: Growth |
93%
From NCERT
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Among the following substance, select the substance/(s) that can be employed to delay leaf senescence.
a. Autoclaved herring sperm DNA
b. Corn-kernel suspension
c. Coconut milk
1. Only a
2. Only a and c
3. Only b and c
4. all a, b and c
a. Autoclaved herring sperm DNA
b. Corn-kernel suspension
c. Coconut milk
1. Only a
2. Only a and c
3. Only b and c
4. all a, b and c
Subtopic: Growth Hormones & Auxin |
84%
From NCERT
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Which of the following methods can be used for hedge-making in a garden?
1. Vernalization
2. Exposure of plant to high-intensity light
3. Application of cytokinin
4. Irrigation
1. Vernalization
2. Exposure of plant to high-intensity light
3. Application of cytokinin
4. Irrigation
Subtopic: Auxin Function |
59%
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Which of the following fruits cannot be artificially ripened by gaseous plant hormones?
1. Tomato
2. Cherry
3. Mango
4. Banana
1. Tomato
2. Cherry
3. Mango
4. Banana
Subtopic: Ethylene |
60%
From NCERT
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Internode elongation in deep water rice plants can be achieved by:
1. GA
2. Ethylene
3. Cytokinin
4. Auxin
1. GA
2. Ethylene
3. Cytokinin
4. Auxin
Subtopic: Ethylene |
86%
From NCERT
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How many of the following PGRs does/do not show acidic nature?
A. Auxin
B. Gibberellins
C. Cytokinin
D. Ethylene
E. ABA
1. One
2. Two
3. Three
4. Four
A. Auxin
B. Gibberellins
C. Cytokinin
D. Ethylene
E. ABA
1. One
2. Two
3. Three
4. Four
Subtopic: Growth Hormones & Auxin |
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Subtopic: Gibberellin |
77%
From NCERT
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The carbohydrate content of sugarcane can be increased with the help of:
1. ABA
2. Ethylene
3. GA
4. Auxin
1. ABA
2. Ethylene
3. GA
4. Auxin
Subtopic: Gibberellin |
92%
From NCERT
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Which of the following types of movement is/are exhibited by Auxin?
1. Only centripetal
2. Only basipetal
3. Only acropetal
4. Both acropetal abd basipetal
1. Only centripetal
2. Only basipetal
3. Only acropetal
4. Both acropetal abd basipetal
Subtopic: Growth |
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Which of the following hormones is associated with phototropic and geotropic movement plants?
1. Ethylene
2. GA
3. ABA
4. Auxin
1. Ethylene
2. GA
3. ABA
4. Auxin
Subtopic: Auxin Function |
85%
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