Amphivasal vascular bundles are characteristic of the stem of

Cycas and Dryopteris

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Dracaena and Yucca

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Helianthus and Cucurbita

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Maize and wheat

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Solution

The correct option is A Dracaena and Yucca
Amphivasal vascular bundles are characteristic of the stem of Dracaeno and Yucca. Amphivasal vascular bundle is one in which the phloem is surrounded by xylem. Xylem elements are large enough that there will be no trouble distinguishing them from the fibers of the bundle sheath. A number of monocot species have amphivasal bundles instead of collateral bundles.
Thus, the correct answer is option B.

Suggest Corrections

	List I		List II
A	Radial vascular bundle	1	Cucurbita pepo
B	Collateral vascular bundle	2	Dracaena
C	Bicollateral vascular bundle	3	Roots of angiosperms
D	Amphicribral vascular bundle	4	Sunflower stem
E	Amphivasal vascular bundle	5	Fern