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6.Anatomy of Flowering Plants
medium
Vascular bundles in dicot stem are
A
Conjoint and collateral
B
Conjoint and closed
C
Conjoint, collateral and open
D
Collateral and open
Solution
(c) Conjoint : A vascular bundle having both xylem and phloem together, is called conjoint. Collateral : A vascular bundle in which the phloem lies towards outer side and xylem towards inner side, is called collateral $e.g.$, Sunflower.
Collateral bundle having a cambium between xylem and phloem is said to be of the open type. $e.g.$, Dicot stem.
Standard 11
Biology
