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NTA Abhyas NEET2020BotanyAnatomy of Flowering PlantsPractice

How many of the following meristems are completely secondary in origin ? A. Cork cambium of a dicot stem B. Vascular cambium of a dicot stem C. Cork cambium of a dicot root D. Vascular cambium of a dicot root

Options

  1. A4
  2. B3
  3. C2
  4. D1

Correct answer

B. 3

Step-by-step solution

Interfascicular Cambium: A. This cambium is secondary meristem. B. It develops from the parenchymatous cells of medullary rays. C. It is located between two consecutive vascular bundles. D. During secondary growth its derivatives are secondary phloem, secondary xylem and conjunctive tissue. Intrafascicular Cambium: A. It is primary meristem. B. It develops from the procambium of the stem apex. C. It is located inside the open vascular bundles, between phloem and xylem patches. D. During secondary growth the derivat

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