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In gymnosperms, the seeds that develop p...

In gymnosperms, the seeds that develop post-fertilisation, are naked. It means
1 not covered by any ovule wall
2 they are very small
3 they loose their wall at maturity
4 not covered by any ovary wall

A

not covered by any ovule wall

B

the are very small

C

they loose their wall at maturity

D

not covered by any ovary wall

Text Solution

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The correct Answer is:
To answer the question regarding gymnosperms and the meaning of "naked seeds," we can break down the information as follows: ### Step-by-Step Solution: 1. **Understanding Gymnosperms**: Gymnosperms are a group of vascular plants that produce seeds that are not enclosed in an ovary. This characteristic is what defines them as "naked seed" plants. 2. **Definition of Naked Seeds**: The term "naked seeds" indicates that the seeds develop from ovules that are exposed and not covered by any protective structures such as an ovary wall. 3. **Analyzing the Options**: - **Option 1**: "Not covered by any ovule wall" - This is incorrect because the seeds are derived from ovules, which do have walls, but they are not covered by an ovary wall. - **Option 2**: "They are very small" - This is not a defining characteristic of gymnosperm seeds and is incorrect. - **Option 3**: "They lose their wall at maturity" - This is also incorrect; the ovule wall remains intact. - **Option 4**: "Not covered by any ovary wall" - This is correct. In gymnosperms, the seeds develop without the protection of an ovary wall, which is what makes them "naked." 4. **Conclusion**: The correct answer is option 4: "not covered by any ovary wall." ### Final Answer: **The correct option is 4: not covered by any ovary wall.**
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Assertion: In gymnosperms the seeds that develop post fertilisation are naked. Reason: In gymnosperms ovules are not enclosed by any ovary wall.

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