| Read the assertion and reason carefully: |
| Assertion : Tyloses plug the tracheids and vessels. |
| Reason : Tyloses are in growths of xylem cells. |
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: C
Solution :
The tracheids and vessels of the heart wood get plugged by in growth of the adjacent parenchyma cells into their cavities through the pits. These in growths are called tyloses. Ultimately, the parenchyma cells become lignified and dead.
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