Q. No.How many of the given statements are correct?
1. 1
2. 2
3. 3
4. 4
| I: | All Gibberellins are acidic. |
| II: | Gibberellins, cause a fruit like apple to elongate and improve its shape. |
| III: | Gibberellins delay senescence. |
| IV: | GA3 is used to speed up the malting process in brewing industry. |
1. 1
2. 2
3. 3
4. 4
Subtopic: Gibberellin |
80%
Level 1: 80%+
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Subtopic: Gibberellin |
87%
Level 1: 80%+
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A plant growth regulator can be sprayed on sugarcane to increase the yield significantly. Identify the PGR:
| 1. | ABA | 2. | Gibberellin |
| 3. | Auxin | 4. | Ethylene |
Subtopic: Gibberellin |
93%
Level 1: 80%+
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Match the following :
| A. | IAA | i. | Herring sperm DNA |
| B. | ABA | ii. | Bolting |
| C. | Ethylene | iii. | Stomatal closure |
| D. | GA | iv. | Weed-free lawns |
| E. | Cytokinins | v. | Ripening of fruits |
Options:
| A | B | C | D | E | |
| 1. | iv | iii | v | ii | i |
| 2. | v | iii | iv | ii | i |
| 3. | iv | i | v | iii | ii |
| 4. | v | iii | ii | i | iv |
Subtopic: Growth Hormones & Auxin | Gibberellin | Cytokinin | Ethylene | Abscisic Acid |
91%
Level 1: 80%+
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Seed germination is inhibited by ABA in antagonism with:
1. Auxins
2. Ethylene
3. Kinetins
4. GAs
1. Auxins
2. Ethylene
3. Kinetins
4. GAs
Subtopic: Gibberellin | Abscisic Acid |
85%
Level 1: 80%+
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Which PGR, although can be included in the group of both growth promoters and growth inhibitors in plants, is largely an inhibitor of growth activities?
1. Auxins
2. Gibberellins
3. Ethylene
4. Abscisic acid
1. Auxins
2. Gibberellins
3. Ethylene
4. Abscisic acid
Subtopic: Gibberellin |
86%
Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | Spraying juvenile conifers with GAs leads to early seed production. |
| Reason (R): | Spraying juvenile conifers with GAs hastens the maturity period. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Gibberellin |
89%
Level 1: 80%+
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Plant hormones that affects stem elongation to the greatest extent would be:
| 1. | gibberellin | 2. | cytokinin |
| 3. | abscisic acid | 4. | ethylene |
Subtopic: Gibberellin |
83%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | Gibberellins are involved in the natural process of breaking dormancy and other aspects of germination. |
| Statement II: | Gibberellins in the seed embryo are believed to signal starch hydrolysis through inducing the synthesis of the enzyme α-amylase in the aleurone cells. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Gibberellin |
75%
Level 2: 60%+
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To promote stem elongation, gibberellins act in concert with:
| 1. | Auxins | 2. | Cytokinins |
| 3. | Ethylene | 4. | ABA |
Subtopic: Growth Hormones & Auxin | Auxin Function | Gibberellin |
50%
Level 3: 35%-60%
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