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Assertion: Septa less tracheids are abse...

Assertion: Septa less tracheids are absent in Trochodendron.
Reason: Heteroxylous wood is present in Trochodendron.

A

If both Assertin and Reason are true and the Reason is the correct explanatin of the Assertion.

B

If both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.

C

If Assertion is true, Reason is false.

D

If both Assertion and Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Assertion**: The assertion states that "Septal-less tracheids are absent in Trochodendron." This means that in the wood of Trochodendron, there are no tracheids that lack septa (the cross-walls that separate cells). 2. **Understanding the Reason**: The reason given is that "Heteroxylous wood is present in Trochodendron." Heteroxylous wood refers to wood that contains both different types of tracheids (e.g., septate and septal-less). 3. **Identifying the Family**: Trochodendron belongs to the family Trochodendraceae, which is known to be vessel-less. This family is characterized by the absence of vessel elements in their wood. 4. **Analyzing the Wood Type**: In Trochodendron, the wood is actually homoxylous, meaning it contains only one type of tracheid (in this case, septate tracheids). Therefore, the assertion that septal-less tracheids are absent is true. 5. **Evaluating the Reason**: Since Trochodendron has homoxylous wood, the statement that it has heteroxylous wood is false. This means that the reason does not correctly explain the assertion. 6. **Conclusion**: The assertion is true, but the reason is false. Therefore, the correct conclusion is that the assertion is true while the reason is incorrect. **Final Answer**: The assertion is true, and the reason is false. ---
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