STANDARDBotany-Anatomy of Flowering Plants
STANDARD Botany Root MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
A
Absence of secondary xylem
B
Absence of secondary phloem
C
Presence of cortex
D
Position of protoxylem
Correct Answer
Option D
Detailed Explanation
In dicot roots, exarch condition is present with proto-xylem at the periphery, whereas in dicot stems, endarch condition is present with proto-xylem inside.
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