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Question 27 of 29

Q.Root which develops other than from radicle is called ________.

(a) Adventitious root
(b) Tap root
(c) Primary root
(d) Lateral root
Puducherry TnboardTamil Nadu HSC First Year (DGE) Board 2026MCQ· 1mImportance★★★★★
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Roots arising from parts of the plant other than the radicle (stem, node, leaf, etc.) are called adventitious roots.

In a typical dicot seedling, the radicle (embryonic root) grows down and becomes the primary root, which then branches to give lateral (secondary, tertiary) roots — together these form the normal tap root system. However, roots can also arise from locations other than the radicle: from stem nodes/internodes (e.g., prop roots of banyan, stilt roots of maize and sugarcane), from leaves (e.g., Bryophyllum), or when a cutting is planted and roots sprout from the stem base. Any root that originates this way — NOT as a continuation or branch of the radicle — is te …

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