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The meiocyte of an onion plant contains ...

The meiocyte of an onion plant contains 32 chromosomes. Workout the number of chromosomes found in its endosperm.

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Melocyte has 32 chromosomes (2n). Hence its gamete will have 32/2 =16 chromosomes. Therefore endosperm will have `16 xx 3 =48` chromosomes (3r).
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MODERN PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Revison Exercises (B. Questions From Cbse Board Examinations)
  1. The microscopic pollen grains of the past are obtained as fossils. Men...

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  2. Mention the pollinating agent of an inflorescence of small dull colour...

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  3. The meiocyte of an onion plant contains 32 chromosomes. Workout the nu...

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  4. A bilobed, dithecous anther has 100 microspore mother cells per micros...

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  5. An anther with malfunctioning tapetum often fails to produce viable ma...

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  6. Cucurbits and papaya plants bear staminate and pistillate flowers. Men...

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  7. The following statements describe the wind pollinated plants. Which on...

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  8. Give an example of a plant which came into India as a contaminant and ...

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  9. Give an example of a plant which came into India as a contaminant and ...

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  10. An anther with malfunctioning tapetum often fails to produce viable ma...

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  11. What is double fertilization in angiosperms?

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  12. How does the pollen mother cell develop into a mature pollen grain? Il...

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  13. Draw a longitudinal section of a post-pollinated pistil showing entry ...

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  14. (i ) Write the characteristics features of anther, pollen and stigma o...

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  15. (a) Mention any four strategies adopted by flowering plants to prevent...

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  16. Write the function of tapetum in anthers.

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  17. Explain the function of each of the following : (a) Coleorihiza , ...

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  18. Explain any three advantages the seeds offer to angiosperms.

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  19. Make a list of an y three outbreeding devices that flowering plants ha...

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  20. Why are angiosperm anthers called dithecous ? Describe the structure o...

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