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Which of the following statements are co...

Which of the following statements are correct?
I. Growth in plants can be indeterminate or determinate
II. The final structure at maturity of a cell/ tissue is determined by the location in the plant body
III. The act leading to maturation of meristems is termed as dedifferentiation.
IV. A differentiated cell may undergo dedifferentiation and then redifferentiation

A

I, II, III only

B

I, II, III, IV

C

III, IV only

D

I, II and IV only

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are correct regarding plant growth and development, let's analyze each statement step by step. ### Step-by-Step Solution: 1. **Statement I: Growth in plants can be indeterminate or determinate.** - **Explanation:** Indeterminate growth refers to the continuous growth of plants, where they can keep adding new organs (like leaves, stems, and roots) throughout their life. In contrast, determinate growth means that the plant grows to a certain size or shape and then stops growing. - **Conclusion:** This statement is **correct**. 2. **Statement II: The final structure at maturity of a cell/tissue is determined by the location in the plant body.** - **Explanation:** The position of a cell within the plant influences its development and differentiation. Cells in different locations can develop into different types of tissues or structures based on their location. - **Conclusion:** This statement is **correct**. 3. **Statement III: The act leading to maturation of meristems is termed as dedifferentiation.** - **Explanation:** Dedifferentiation refers to the process where mature, differentiated cells revert to a less specialized state, allowing them to divide and form new cells. The maturation of meristems does not involve dedifferentiation; rather, it involves differentiation. Therefore, this statement is incorrect. - **Conclusion:** This statement is **incorrect**. 4. **Statement IV: A differentiated cell may undergo dedifferentiation and then redifferentiation.** - **Explanation:** This statement is true. A differentiated cell can revert to a less specialized state (dedifferentiation) and then can differentiate again into a new type of cell (redifferentiation). - **Conclusion:** This statement is **correct**. ### Final Assessment: - The correct statements are I, II, and IV. - Therefore, the correct answer is option **4th: I, II, and IV**.
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