NEET Biology question
I. Youngest secondary phloem is just outside the cambium, while youngest secondary xylem is present inside the cambium. II. Oldest secondary phloem is just inside the primary phloem, while oldest secondary xylem is just above pith. III. Secondary medullary ray passes through both secondary xylem and secondary phloem. Select the incorrect statement from above.
Answer: (D)
Solution
Statement I is correct: the youngest secondary phloem lies just outside the cambium, and the youngest secondary xylem lies just inside it. Statement II is correct: the oldest secondary phloem (formed first) lies just inside the primary phloem (pushed towards the periphery),
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