The cambium ring at the time of its origin in a dicot root
A
Is completely outside xylem and phloem.
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B
Is completely inside xylem and phloem
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C
Is internal to phloem and external to xylem.
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D
Is external to phloem and internal to xylem.
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Solution
The correct option is C
Is internal to phloem and external to xylem.
A ring of cells that lies between the phloem and the xylem of the dicot root becomes meristematic and starts to grow. This is called as the cambium ring. Therefore at the time of its origin, it is internal to the phloem and external to the xylem.