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Secondary growth in dicots & gymnosperms occur by

$\begin{array}{1 1}(A)\;\text{Formation of vascular rays}\\(B)\;\text{Thickening of tracheary elements}\\(C)\;\text{Formation of meristematic cells in the vascular region}\\(D)\;\text{Development of meristematic cells in vascular & cortical regions}\end{array} $

1 Answer

Secondary growth in dicots & gymnosperms occur by development of meristematic cells in vascular & cortical regions
Hence (D) is the correct answer.
answered May 6, 2014 by sreemathi.v
 
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