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Q. No.The mode of arrangement of petals is not ‘twisted’ in:
1.
China rose
2.
Lady’s finger
3.
Calotropis
4.
Cotton
Subtopic: Flower & Parts of Flower: I |
86%
From NCERT
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Identify the incorrectly matched pair:
Options:
| A. | Actinomorphic flower | Gulmohur |
| B. | Zygomorphic flower | Mustard |
| C. | Asymmetric flower | Cassia |
| 1. | Only A and B | 2. | Only B |
| 3. | Only C | 4. | A, B and C |
Subtopic: Flower & Parts of Flower |
67%
From NCERT
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Consider the two statements:
1. Statement I is correct and Statement II is incorrect
2. Statement I is incorrect and Statement II is correct
3. Statement I and Statement II are correct
4. Statement I and Statement II are incorrect
| Statement I: | In racemose type of inflorescence, the main axis terminates in a flower, hence is limited in growth and the flowers are borne in a basipetal order. |
| Statement II: | In cymose type of inflorescence, the main axis continues to grow and the flowers are borne laterally in an acropetal succession. |
2. Statement I is incorrect and Statement II is correct
3. Statement I and Statement II are correct
4. Statement I and Statement II are incorrect
Subtopic: Inflorescence |
91%
From NCERT
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The type of placentation shown in the given diagram is not seen in:
| 1. | Mustard | 2. | China rose |
| 3. | Tomato | 4. | Lemon |
Subtopic: Flower & Parts of Flower |
69%
From NCERT
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In palmately compound leaves:
| 1. | Leaf lamina is entire |
| 2. | Leaf lamina is incised but the incisions do not touch the mid rib |
| 3. | Leaf lamina is incised, lamina reach up to the midrib and leaflets are present on a common axis |
| 4. | Leaf lamina is incised, lamina reach up to the midrib and leaflets are attached at a common point |
Subtopic: Venation, Types of Leaves & Phyllotaxy |
75%
From NCERT
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Identify the option where the features are correctly matched to types with respect to mustard:
| Flower symmetry | Ovary position | Androecium | Gynoecium | |
| 1. | Zygomorphic | Inferior | Variable length stamens within a flower | Parietal placentation |
| 2. | Zygomorphic | Inferior | Polyadelphous | Marginal placentation |
| 3. | Actinomorphic | Superior | Polyadelphous | Axile placentation |
| 4. | Actinomorphic | Superior | Variable length stamens within a flower | Parietal placentation |
Subtopic: Flower & Parts of Flower |
77%
From NCERT
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Identify the incorrect statement:
| 1. | Ray florets of sunflower have epigynous flowers with inferior ovary. |
| 2. | In vexillary aestivation, keel are the two largest posterior petals. |
| 3. | Stamens are united into one bunch in China rose. |
| 4. | Placentation is marginal in Pea. |
Subtopic: Flower & Parts of Flower |
82%
From NCERT
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In mango and coconut:
| 1. | the fruit is a drupe |
| 2. | edible part is the mesocarp |
| 3. | the fruit is parthenocarpic |
| 4. | thalamus contributes maximum part in the development of the fruit |
Subtopic: Fruits & their Types |
91%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Having the sepals united | Gamosepalous |
| 2. | Sterile stamen | Staminate |
| 3. | Stamens attached to perianth | Epiphyllous |
| 4. | Having the carpels of the gynoecium united in a compound ovary | Syncarpous |
Subtopic: Flower & Parts of Flower |
From NCERT
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China rose:
1. belongs to Brassicaceae
2. has parietal placentation
3. has monoadelphous stamen
4. has valvate aestivation
1. belongs to Brassicaceae
2. has parietal placentation
3. has monoadelphous stamen
4. has valvate aestivation
Subtopic: Flower & Parts of Flower |
84%
From NCERT
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