Give an account on vascular bundle of di...

Give an account on vascular bundle of dicot stem.

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Vascular bundles of dicot stem are conjoint (xylem and phloem lies in the same radius) collateral (xylem is the centre and phloem lies towards periphery) endarch (proto xylem in the centre, Meta xylem lies in the periphery) and open (cambium present in between xylem and phloem). They are arranged in the form of ring around the pith.

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When a leaf trace extends from a vascular bundle in a dicot stem, what would be the arrangement of vascular tissues in the veins of the leaf ?

Xylem would be on top and phloem on the bottom.

Phloem would be on top and xylem on the bottom.

Xylem would encircle the phloem

Phloem would encircle the xylem.

When a leaf trace extends from a vascular bundle in a dicot stem, what would be the arrangement of vascular tissues in the veins of the leaf?

Xylem would be on top and the phloem on the bottom.

Phloem would be on top and xylem on the bottom.

Xylem would encircle the phoem.