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Q. No.All statements regarding the features of racemose and cymose inflorescence are correct except:
1.
In racemose inflorescence, the flowers are borne in an acropetal order
2.
In cymose inflorescence, the floral main axis continues to grow throughout the life
3.
In racemose inflorescence the floral main axis continues to grow
4.
In cymose inflorescence, the flowers are borne in a basipetal order
Subtopic: Inflorescence |
91%
From NCERT
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Flower - bisexual, actinomorphic; Calyx and Corolla – Valvate aestivation; Androecium - stamens five, epipetalous; Gynoecium - bicarpellary obliquely placed, syncarpous are some of the floral characters applicable to flowers of:
1. Mustard
2. Potato
3. Lily
4. Pea
1. Mustard
2. Potato
3. Lily
4. Pea
Subtopic: Semi Technical Description | Flower & Parts of Flower |
75%
From NCERT
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The type of phyllotaxy shown in the given figure:
Statement I: is known as opposite.
Statement II: is seen in china rose.
1. Statement I is incorrect; Statement II is correct
2. Statement I is correct; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Statement I: is known as opposite.
Statement II: is seen in china rose.
1. Statement I is incorrect; Statement II is correct
2. Statement I is correct; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Venation, Types of Leaves & Phyllotaxy |
71%
From NCERT
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What part of the flower in an angiosperm becomes the fruit after fertilization?
1. the stamen
2. the pistil
3. the ovule
4. the ovary
1. the stamen
2. the pistil
3. the ovule
4. the ovary
Subtopic: Flower & Parts of Flower |
91%
From NCERT
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What covers the embryonic root in monocots?
1. hypodermis.
2. scutellum.
3. coleorrhiza.
4. coleoptile.
1. hypodermis.
2. scutellum.
3. coleorrhiza.
4. coleoptile.
Subtopic: Seed |
81%
From NCERT
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The scutellum seen in the grain of cereals like wheat and maize can be compared to what structure in other monocots?
1. Aleurone layer
2. Plumule
3. Cotyledons
4. Endosperm
1. Aleurone layer
2. Plumule
3. Cotyledons
4. Endosperm
Subtopic: Seed |
76%
From NCERT
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Although a root system performs many functions, a fibrous root system may especially be excellent for:
1. storage of food
2. absorbing water from the deeper layers of soil
3. nitrogen fixation
4. providing good anchorage to the plant
1. storage of food
2. absorbing water from the deeper layers of soil
3. nitrogen fixation
4. providing good anchorage to the plant
Subtopic: Morphology of Roots |
52%
From NCERT
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What would be an ‘inferior ovary’ in an angiosperm?
1. One which is situated on the receptacle above the perianth and androecium.
2. One which is positioned below the sites of attachment for perianth and androecium.
3. One which is useless and cannot be converted into fruit.
4. One which is positioned below the receptacle.
1. One which is situated on the receptacle above the perianth and androecium.
2. One which is positioned below the sites of attachment for perianth and androecium.
3. One which is useless and cannot be converted into fruit.
4. One which is positioned below the receptacle.
Subtopic: Flower & Parts of Flower |
73%
From NCERT
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The type of aestivation seen in the given figure is:
I: called valvate.
II: seen in Cassia and gulmohur.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I: called valvate.
II: seen in Cassia and gulmohur.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Flower & Parts of Flower |
80%
From NCERT
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A pericarp seen in fruits of angiosperms is derived from:
1. integuments.
2. endosperm.
3. ovule wall.
4. ovary wall.
1. integuments.
2. endosperm.
3. ovule wall.
4. ovary wall.
Subtopic: Seed |
76%
From NCERT
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