First slide

Secondary Growth

Question

Secondary medullary rays are seen in
A. Primary phloem
B. Secondary cortex
C. Secondary phloem
D. Secondary xylem

Easy

A

A and C
B

B and D
C

C and D
D

A and B

Solution

Secondary medullary rays are formed in radial direction from ray initials in both secondary xylem and secondary phloem. They help in radial conduction.

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