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NEETBotanyAnatomy of Flowering Plants

Consider the following plant tissues: (i) Shoot apical meristem (ii) Intrafascicular cambium (iii) Interfascicular cambium (iv) Cork cambium (v) Intercalary meristem Which of the above are strictly secondary meristems formed by the process of dedifferentiation?

Options

  1. A(ii), (iii) and (iv) only
  2. B(iii), (iv) and (v) only
  3. C(ii) and (iii) only
  4. D(iii) and (iv) only

Correct answer

D. (iii) and (iv) only

Step-by-step solution

Shoot apical meristem and intercalary meristem are primary meristems as they appear early in the life of a plant and contribute to the primary plant body. Intrafascicular cambium (fascicular vascular cambium) is present between primary xylem and primary phloem in dicot stems from the beginning, making it primary in origin, even though it is a lateral meristem. Interfascicular cambium is formed later when fully differentiated medullary ray cells regain the capacity to divide (dedifferentiation). Cork cambium (phello

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