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
Identify the incorrectly matched pair:
|
Aestivation type |
Example |
|
|
1. |
Valvate |
Calotropis |
|
2. |
Twisted |
Bean |
|
3. |
Imbricate |
Gulmohur |
|
4. |
Vexillary |
Pea |
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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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In unilocular ovary with a single ovule, the placentation is
| 1. Basal | 2. Free Central |
| 3. Axile | 4. Marginal |
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Tetradynamous condition occurs in
| 1. Petunia hybrida | 2. Helianthus annuus |
| 3. Brassica campestris | 4. Hibiscus rosa sinensis |
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, Mustard, Groundnut, Radish, Gram and Turnip have stamens with different lengths in their flowers?
| 1. Six | 2. Three |
| 3. Four | 4. Five |
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Match type of adhesion of stamens with example and select the correct answer from the codes given:
| Adhesion of stamens | Example | ||
| A. | Epipetalous | a. | Datura |
| B. | Epiphyllous | b. | Tulip |
| C. | Gynandrous | c. | Calotropis |
Codes
| A | B | C | |
| 1. | a | b | c |
| 2. | b | a | c |
| 3. | c | a | b |
| 4. | a | c | b |
Consider the following four statements A, B, C, and D & select the right option for two correct statements.
Statements:
| (A) | In vexillary aestivation, the large posterior petal is called standard, two lateral ones are wings and two small anterior petals are termed keel. |
| (B) | The floral formula for Liliaceae is  |
| (C) | In pea flower, the stamens are monadelphous |
| (D) | The floral formula for Solanaceae is |
The correct statements are
| 1. | (C) and (D) | 2. | (A) and (C) |
| 3. | (A) and (B) | 4. | (B) and (C) |
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