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Q. No.Subtopic: Auxin Function |
96%
Level 1: 80%+
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Subtopic: Growth Model |
90%
Level 1: 80%+
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Match the following
| Column I | Column II | ||
| a. | Auxin | (i) | Root hair formation |
| b. | Cytokinin | (ii) | Seed development |
| c. | Ethylene | (iii) | Xylem differentiation |
| d. | ABA | (iv) | Nutrient mobilisation |
| 1. | a(iv), b(ii), c(iii), d(i) |
| 2. | a(ii), b(iii), c(i), d(iv) |
| 3. | a(ii), b(iii), c(i), d(iv) |
| 4. | a(iii), b(iv), c(i), d(ii) |
Subtopic: Auxin Function | Cytokinin | Ethylene | Abscisic Acid |
87%
Level 1: 80%+
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Which parameter is used to measure the growth in flat organs like leaves?
| 1. | Increase in dry weight |
| 2. | Increase in cell size |
| 3. | Increase in surface area |
| 4. | Increase in length |
Subtopic: Growth |
85%
Level 1: 80%+
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Growth of pollen tube is measured in terms of
| 1. | Surface area | 2. | Cell number |
| 3. | Cell size | 4. | Length |
Subtopic: Growth | Growth Terminology |
88%
Level 1: 80%+
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Consider the following statements and select the option that correctly fill in the blanks.
| A. | _________ is used to induce the dormancy of buds and storage organs. |
| B. | _________ speed up the malting process in brewing industry. |
| C. | Senescence is prevented by __________. |
| A | B | C | |
| 1. | Gibberellin | Cytokinin | GAs |
| 2. | Ethylene | ABA | Cytokinin |
| 3. | Cytokinin | Auxins | ABA |
| 4. | ABA | GAs | Cytokinin |
Subtopic: Gibberellin | Cytokinin | Abscisic Acid |
90%
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In which of the following options the PGR is correctly matched with its two functions?
| 1. | Abscisc acid | - (i) Induce immediate stomatal closure in leaves. (ii) Induce rooting is a twig. |
| 2. | Gibberellins | - (i) Bolting in rosette plant. (ii) Speed up the malting process in brewing industry. |
| 3. | Ethylene | - (i) Delay leaf senescence. (ii) Controls xylem differentiation. |
| 4. | Auxin | - (i) Used to kill mocotyledonous weeds. (ii) Promotes nutrient mobilisation. |
Subtopic: Gibberellin |
92%
Level 1: 80%+
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Plant growth regulator's
| 1. | May act synergistically or antogonistically |
| 2. | Are intrinsic intercellular factor |
| 3. | Are simple, molecules of diverse chemical composition |
| 4. | All of the above |
Subtopic: Growth Hormones & Auxin |
95%
Level 1: 80%+
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Heterophyllous development due to environment is an example of:-
| 1. | Developmental noise | 2. | Norm of the reaction |
| 3. | Convergence | 4. | Plasticity |
Subtopic: Development |
97%
Level 1: 80%+
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N6- furfurylamino purine and kinetin are derivative of …….
| 1. | Indol compounds | 2. | Adenine |
| 3. | carotenoids | 4. | Terpenes |
Subtopic: Cytokinin |
83%
Level 1: 80%+
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