Q. No.When sepals or petals in a whorl just touch one another at the margin, without overlapping, the aestivation is said to be:
1.
Valvate
2.
Twisted
3.
Imbricate
4.
Vexillary
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Imbricate aestivation of floral parts is seen in:
| 1. | Calotropis | 2. | Cassia |
| 3. | China rose | 4. | Lady’s finger |
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Pneumatophores are found in plants growing in:
| 1. Xeric conditions | 2. Swampy areas |
| 3. Hypersaline environments | 4. Permafrost conditions |
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In papilionaceous aestivation:
1. standard overlaps the wings that overlap the keel
2. standard overlaps the keel that overlaps the wings
3. wings overlap the standard that overlaps the keel
4. keel overlaps the wings that overlap the standard
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The lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil and then come out obliquely upwards giving rise to leafy shoots in:
| 1. Opuntia and Euphorbia | 2. Mint and Jasmine |
| 3. Pistia and Eichhornia | 4. Banana and Pineapple |
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Usually the anther in an angiosperm has:
1. two lobes and each lobe has two pollen sacs
2. two lobes and each lobe has one pollen sac
3. four lobes and each lobe has one pollen sac
4. four lobes and each lobe has two pollen sacs
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Stamens attached to the perianth as in the flowers of lily are called as:
| 1. | Epipetalous | 2. | Epiphyllous |
| 3. | Polypetalous | 4. | Gamopetalous |
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Variation in the length of filaments within a flower is seen in:
| 1. | Pea | 2. | Citrus |
| 3. | Salvia | 4. | Brinjal |
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Both stem tendrils and stem thorns:
1. help the plant to climb
2. develop from axillary buds
3. protect plants from browsing animals
4. can be used in vegetative propagation
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After fertilization, the ovules develop into _____ and ovary matures into ______.
| 1. | Fruit, Seeds | 2. | Seeds, Fruit |
| 3. | Seeds, Seed coat | 4. | Embryo, Endosperm |
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