NEET 2012 Biology question

As compared to a dicot root, a monocot root has

(1)Relatively thicker periderm
(2)More abundant secondary xylem
(3)Many xylem bundlesCorrect
(4)Inconspicuous annual rings

Answer: (3)

Solution

A dicot root has usually two to four (tetrarch at most) xylem bundles, while a monocot root has more than six (polyarch) xylem bundles, with a large pith. So (3) is correct. Monocot roots do not

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Question ID VK-091056