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Q. No.A slender lateral branch, arises from the base of main axis and after growing aerially for some time, arch downwards to touch the ground, in:
1.
Banana
2.
Pineapple
3.
Strawberry
4.
Mint
Subtopic: Modifications of Stem |
78%
From NCERT
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Consider the given two statements:
| Statement I: | A flower is a modified shoot wherein the shoot apical meristem changes to floral meristem. |
| Statement II: | When a shoot tip transforms into a flower, it is always solitary. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Flower & Parts of Flower |
95%
From NCERT
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In some flowers like lily, the calyx and corolla are not distinct and are termed as:
1. perisperm
2. perianth
3. essential whorls
4. periderm
1. perisperm
2. perianth
3. essential whorls
4. periderm
Subtopic: Flower & Parts of Flower |
97%
From NCERT
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Which of the following statement about the gynoecium and its parts is correct?
| 1. | The ovary is the elongated tube that connects the style to the stigma. |
| 2. | Carpels are termed apocarpous when they are fused, as seen in mustard and tomato. |
| 3. | The stigma is the receptive surface for pollen grains and is usually at the tip of the style. |
| 4. | After fertilisation, the style develops into seeds and the ovary matures into a fruit. |
Subtopic: Flower & Parts of Flower |
94%
From NCERT
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If a fruit is formed without fertilisation of the ovary, it is called a:
| 1. | parthenocarpic fruit | 2. | parthenogenetic fruit |
| 3. | arrhenotokic fruit | 4. | thelytokic fruit |
Subtopic: Fruits & their Types |
100%
From NCERT
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What structure is seen in both monocotyledonous and dicotyledonous seeds?
| 1. | Scutellum | 2. | Aleurone layer |
| 3. | Plumule | 4. | Coleoptile |
Subtopic: Seed |
85%
From NCERT
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In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots:
1. provide support to the plant
2. help to get oxygen for respiration
3. are organs of perennation for plants
4. act as storage organs
1. provide support to the plant
2. help to get oxygen for respiration
3. are organs of perennation for plants
4. act as storage organs
Subtopic: Modification of Roots |
97%
From NCERT
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Which floral part performs the function of attracting insect pollinators?
| 1. | Carpals | 2. | Stamens |
| 3. | Petals | 4. | Sepals |
Subtopic: Flower & Parts of Flower |
91%
From NCERT
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Subtopic: Flower & Parts of Flower |
80%
From NCERT
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Consider the given two statements:
| Statement I: | The stem develops from the plumule of the embryo of a germinating seed. |
| Statement II: | The region of the stem where leaves are born is called an internode. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Morphology of Stems |
89%
From NCERT
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