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In Citrus, Duranta and Bougainvillea, th...

In Citrus, Duranta and Bougainvillea, the thorns are the modified

A

axillary buds

B

leaves

C

roots

D

apical bud

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The correct Answer is:
A
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[A] : Thorns may bear nodes and internodes in some plants. [R] : Thorns are modified stems as they arise in the axil of a leaf or at the apex a branch.

TRUEMAN BIOLOGY-MORPHOLOGY OF FLOWERING PLANTS (ANGIOSPERMS)-Multiple Choice Questions
  1. Stolon differs from runner in being

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  2. A runner of water with one thick internode, found in aquatic rosette p...

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  3. In Citrus, Duranta and Bougainvillea, the thorns are the modified

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  4. The needle like cladodes of Asparagus are metamorphosed stem for

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  5. Phylloclade is found in

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  6. When the entire stem with its all branches become green, flat, fleshy ...

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  7. A cladode (cladophyll) is green leaf like modified aerial stem and is

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  8. The branching where main stem grows endlessly due to presence of a ter...

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  9. In grasses, the vigorous and quick growth occurs due to

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  10. Which is the odd type of vegetable in a basket containing the followin...

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  11. Which part of leaf is sensitive to sleep and shock movements ?

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  12. In Eichhornia (water hyacinth), the spongy, swollen pulvinus structure...

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  13. The cord like tendrils in Smilax are

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  14. In which plant stipules become leaf like for photosynthesis ?

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  15. Choose the correct statement.

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  16. The phyllotaxy in which two leaves arise from a bud at each node is

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  17. A dicot leaf with parallel venation is

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  18. A monocot leaf has parallel venation but there are some monocot leaves...

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  19. Arrangement of young leaves with respect to each other in a bud is cal...

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  20. Phyllotaxy is

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