The transverse section of a plant part showed polyarch, radial and exarch xylem, with endodermis and pericycle. The plant part is identified as

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dicot root

dicot stem

monocot root

monocot stem

answer is A.

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Detailed Solution

The transverse section of a monocot root showed polyarch, radial and exarch xylem, with endodermis and pericycle.
(2) In dicot root, there are usually two to four xylem and phloem patches. Later, a cambium ring develops between the xylem and phloem.
(3) In dicot stem, a large number of vascular bundles are arranged in a ring. The ‘ring’ arrangement of vascular bundles is a characteristic of dicot stem. Each vascular bundle is conjoint, open and with endarch protoxylem.
(4) In monocot stem, vascular bundles are conjoint and closed. Peripheral vascular bundles are generally smaller than the centrally located ones.

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