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Which of the following is absent in the ...

Which of the following is absent in the life cycle of gymnosperms?

A

Ovules

B

Ovary

C

Microspores

D

Megaspores

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Gymnosperms**: Gymnosperms are a group of seed-producing plants that do not form flowers or fruits. Their seeds are often exposed or "naked," which is a characteristic feature of this group. 2. **Identifying Key Terms**: - **Ovules**: These are structures that develop into seeds after fertilization. They are present in gymnosperms. - **Ovaries**: These are the female reproductive structures that enclose ovules and develop into fruits after fertilization. Ovaries are associated with flowering plants (angiosperms). - **Microspores**: These are the male gametes produced in gymnosperms, which are also present in their life cycle. - **Megaspores**: These are the larger spores that develop into female gametes, and they are present in gymnosperms as well. 3. **Analyzing the Options**: - Since ovules, microspores, and megaspores are all present in the life cycle of gymnosperms, we need to focus on the one that is absent. - Ovaries are specifically related to flowering plants (angiosperms) and are not found in gymnosperms. 4. **Conclusion**: The structure that is absent in the life cycle of gymnosperms is the **ovary**. **Final Answer**: Ovaries are absent in the life cycle of gymnosperms. ---
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PEARSON IIT JEE FOUNDATION-DIVERSITY IN LIVING WORLD - PLANTS-TEST YOUR CONCEPTS
  1. Trimerous condition of floral whorls is present in:

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  2. Which of the following groups of plants possesses cones as reproductiv...

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  3. Which of the following is absent in the life cycle of gymnosperms?

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  4. Name the part of the plant cell which traps solar energy.

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  5. Sessile flowers lack which structure in the flower?

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  6. Which cactus plant is modified into part of the spine?

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  7. Name the venation in which veins form a network

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  8. Underground stem modification is observed in which plant?

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  9. The plants that grow in nitrogen-deficient soil is:

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  10. Which of the following was taken as a distin guishing feature by Whitt...

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  11. Identify unicellular eukaryotic group of organisms.

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  12. Which of the following bacterium is associated with the roots of legu...

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  13. Which of the following are eukaryotic multicellular organisms having c...

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  14. Identify the organism which has prokaryotic cell structure and autotro...

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  15. Identify the characteristic features of yeast. (i) Possession of cel...

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  16. In the following line diagram showing taJconomic hierarchy of plants, ...

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  17. The taxonomic unit at a level one step higher to Genus is:

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  18. Identify the correct statements regarding the taxonomic unit 'species'...

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  19. The photosynthetic pigment found in Sargassum is:

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  20. Ground becomes slippery during rainy season because of

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