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Double fertilization

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One male gamete fuses with egg (syngamy) to form zygote. Second male gamete fuses with two polar nuclei to form primary endosperm nucleus (triple fusion). All steps together represent double fertilization:
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MODERN PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Revison Exercises (B. Questions From Cbse Board Examinations)
  1. Differentiate between monoecious and dioecious plants. Give one examp...

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  2. Define parthenocarpy.

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  3. Double fertilization

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  4. What is the term used for plant bearing both male and female flowers?

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  5. What feature is most important in moth pollinated flowers?

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  6. What does the term monoecious mean?

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  7. What are quiscent seeds ?

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  8. How does the mustard inflorescence differ from the banana inflorescenc...

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  9. Why are cucurbits referred to as monoecious ?

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  10. Give the technical term for flowers pollinated by hondy bees and butte...

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  11. What is the fate of haplooid megaspores formed by megaspore mother cel...

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  12. List the advantages of pollination to angiospermic plant.

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  13. Why is the process of fertilization in a flowering plant referred to a...

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  14. In the following figure of a fruit, label the part which his protectiv...

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  15. Name the parts of an angiosperm flower in which development of male an...

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  16. The microscopic pollen grains of the past are obtained as fossils. Men...

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

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

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

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

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