First slide

Secondary Growth

Question

In the dicot root the vascular cambium originates from :-

Easy

A

Tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem
B

Cortical region
C

Parenchyma between endodermis and pericycle
D

Intrafascicular and interfascicular tissue in a ring

Solution

In dicot root, the vascular cambium is completely secondary in origin. It originates from the tissue located just below the phloem bundles , a portion of pericycle tissue, above the protoxylem forming a complete and continuous wavy ring which later becomes circular.

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