Which of the following forms the secondary medullary rays of xylem

Options :
  1. Wood ray parenchyma
  2. Unilateral paratracheal parenchyma
  3. Vasicentric paratracheal parenchyma
  4. Apotracheal parenchyma
Answer and Explanation :-

Answer: Option 1

Explanation:

Wood ray parenchyma forms the secondary medullary rays of xylem. It arises from ray initials of cambium

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