Question

As compared to a dicot root, a monocot root has :

• A. More abundant secondary xylem
• B. Relatively thicker periderm
• C. Inconspicuous annual rings
• D. Many xylem bundles

Answer 1

The correct option is D Many xylem bundles

The anatomy of dicot root differs from monocot root, in activity of pericycle, no. of xylem strands, presence of medulla, activity of conjunctive tissue.

In dicot root, pericycle is involved in the formation of lateral roots and vascular cambiu, where as in monocot root, pericycle is involved in the formation of lateral roots.

In dicot root 2 to 4 xylem strands are present in the stele, where as monocot root more than 4 xylem strands are present.
In dicot root, medulla is reduced, where as in monocot root medulla is well developed.

In dicot root, conjunctive tissue involved in the formation of vascular cambium, where as in monocot root, it is not involved in the formation of vascular cambium.

So, the correct option is 'Many xylem bundles'.