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The characteristic of anatropous ovule i...

The characteristic of anatropous ovule is

A

Occurrence of hilum near the micropyle

B

Presence of raphe

C

Body of the ovule is inverted

D

All the above.

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Anatropous Ovule**: The anatropous ovule is a specific type of ovule found in flowering plants (angiosperms). It is characterized by the orientation of its structure. 2. **Key Characteristics**: - **Inversion of the Ovule**: The body of the anatropous ovule is rotated 180 degrees. This means that the micropyle (the opening where fertilization occurs) is positioned near the funiculus (the stalk that attaches the ovule to the ovary). - **Alignment of Structures**: In the anatropous ovule, the micropyle, chalaza (the opposite end of the ovule), and funiculus are aligned in a straight line. This alignment is crucial for the ovule's function. - **Hilum Position**: The hilum (the scar where the ovule was attached to the funiculus) is positioned at a right angle (90 degrees) to the micropyle. - **Presence of Raphe**: A ridge known as the raphe is present on the ovule, which helps in the fusion of the ovule to the funiculus. 3. **Evaluating the Options**: - **Option A**: Occurrence of hilum near the micropyle - This is correct since the hilum is at a right angle to the micropyle. - **Option B**: Presence of raphe - This is also correct as the raphe is a characteristic feature of the anatropous ovule. - **Option C**: Body of the ovule is inverted - This is correct because the body is rotated 180 degrees. - **Option D**: All the above - Since all previous options are correct, this option is also correct. 4. **Conclusion**: Therefore, the characteristic of the anatropous ovule includes all the mentioned features, making the final answer "all the above". ### Final Answer: The characteristic of anatropous ovule is **all the above**. ---
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DINESH PUBLICATION ENGLISH-NO IDEA-Brain Teasers
  1. The characteristic of anatropous ovule is

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  2. A structure present in the ovule as well as eggs of birds is

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  3. A plant in which fertilization occurs after the shedding of seed is

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  4. In ovule, exostome is

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  5. Group of specialized thickened nucellar cells between embryo sac and c...

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  6. Hypostase is meant for providing

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  7. A group of specialised nucellar cells between embryo sac and micropyle...

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  8. Sasa paniculata contains a large number of antipodal cells. The number...

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  9. Antipodal cells enlarge tremendously in (a) Sasa (b) Caltha (c) Ac...

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  10. Which one develops from funicle of base of ovule? (a) Sarcotesta (b) ...

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  11. Which one develops from exostome

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  12. In tenuinucellate ovules, the nucellus may break down. The nourishment...

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  13. Endothelium develops from (a) Nucellus (b) Nucellus surrounding embr...

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  14. Middle layers of pollen sac wall are absent in

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  15. Growth of pollen tube is

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  16. The apical growing region of pollen tube is called

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  17. Functional part of pollen tube is separated from the rest by

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  18. Pollen tube cytoplasm is like any other living cell in showing (a) Cal...

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  19. Male nucleus fuses with female nucleus during fertilization in Angiosp...

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  20. Which one is true of male gamete of angiosperms

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  21. Heterofertilization is

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