Q. No.All the following characteristics differentiate stems from the roots except:
1. Development from the plumule
2. Presence of nodes and internodes
3. Terminal or axillary buds
4. Endogenous development of branches
1. Development from the plumule
2. Presence of nodes and internodes
3. Terminal or axillary buds
4. Endogenous development of branches
Aestivation is:
1. mode of arrangement of sepals but not petals in a floral bud with respect to the other members of the same whorl
2. mode of arrangement of petals but not sepals in a floral bud with respect to the other members of the same whorl
3. mode of arrangement of sepals but not petals in a floral bud with respect to each other
4. mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl
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Identify the incorrectly matched pair:
|
|
Placentation |
Example |
|
1. |
Free central |
Dianthus |
|
2. |
Basal |
Sunflower |
|
3. |
Axile |
China rose |
|
4. |
Marginal |
Mustard |
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Identify the incorrectly matched pair regarding floral characters of family Solanaceae:
|
1. |
Flower symmetry |
Actinomorphic |
|
2. |
Aestivation |
Valvate |
|
3. |
Placenta |
Parietal |
|
4. |
Fruit |
Berry or Capsule |
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In general, the functions of the root system of a plant would include all the following except:
1. Absorption of water and minerals from the soil
2. Providing proper anchorage to the plant parts
3. Synthesis of reserve food material
4. Synthesis of plant growth regulators
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Rearrange the following zones as seen in the root in vertical section and choose the correct option.
A. Root hair zone
B. Zone of meristems
C. Rootcap zone
D. Zone of maturation
E. Zon of elongation
Options:
| 1. | C, B, E, A, D | 2. | A, B, C, D, E |
| 3. | D, E, A, C, B | 4. | E, D, C, B, A |
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The mature seed of plants such as gram and peas, possess no endosperm, because
1. These plants are not angiosperms
2. There is no double fertilization in them
3. Endosperm is not formed in them
4. Endosperm gets used up by the developing embryo during seed development
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Endosperm, a product of double fertilization in angiosperms is absent in the seeds of
| 1. | Gram | 2. | Orchids |
| 3. | Maize | 4. | Castor |
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Match the followings and choose the correct option :
| Group A | Group B | ||
| A. | Aleurone layer | i. | without fertilization |
| B. | Parthenocarpic fruit | ii. | Nutrition |
| C. | Ovule | iii. | Double fertilization |
| D. | Endosperm | iv. | Seed |
Options:
| A | B | C | D | |
| 1. | i | ii | iii | iv |
| 2. | ii | i | iv | iii |
| 3. | iv | ii | i | iii |
| 4. | ii | iv | i | iii |
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