Q18 of 51 Page 27

What is the fate of primary xylem in a dicot root showing extensive secondary growth?

The fate of primary xylem in a dicot root showing extensive secondary growth is that it is retained in the centre of the axis.

Primary xylem is present in the centre of the root. As secondary growth occurs in the root the primary phloem is pushed outside whereas, primary xylem remains inside the root.


Hence the correct answer is option (a).

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