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Assertion : Cytokinin along with the aux...

Assertion : Cytokinin along with the auxin are required for morphogenesis.
Reason : More cytokinin to auxin ratio promote root initiation during micropropagation.

A

If Both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)

B

If both Assertion and reason are true but the reason is not the correct explanation of the assertion, then mark (2).

C

If Assertion is true statement but reason is false, then mark (3)

D

If both Assertion and reason are false statements, then mark (4).

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that "Cytokinin along with auxin are required for morphogenesis." This is a true statement. Both cytokinins and auxins are essential plant hormones that play crucial roles in the growth and development of plants. 2. **Role of Cytokinins**: Cytokinins are known to promote cell division (cytokinesis) and are involved in various plant growth processes such as shoot formation, apical dominance, and leaf senescence. They work in conjunction with auxins to facilitate morphogenesis, which is the process of cell differentiation and tissue formation. 3. **Understanding the Reason**: The reason states that "More cytokinin to auxin ratio promotes root initiation during micropropagation." This statement is incorrect. In fact, a higher ratio of auxins to cytokinins is typically required for root initiation, while a higher ratio of cytokinins to auxins promotes shoot initiation. 4. **Conclusion**: Since the assertion is true and the reason is false, we can conclude that the correct relationship is that both hormones are necessary for morphogenesis, but the specific claim about the cytokinin to auxin ratio promoting root initiation is incorrect. 5. **Final Answer**: Therefore, the correct answer to the question is that the assertion is true, but the reason is false.
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