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What is self-incompatibility ? Why does ...

What is self-incompatibility ? Why does self-pollination most lead to seed formation in self-incompatible species?

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The inability of certain gametes even from genetically similar plant species to fuse with each other is called self-incompatibility.
It is because of a continuous dialogue between pollen grain and pistil which is mediated by their chemical components. Further, it inhibits fertilisation.
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OSWAAL PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS -TOPIC-1 SHORT ANSWER TYPE QUESTIONS-I
  1. What is xenogamy? Mention its importance.

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  2. Arrange the following terms in the correct development sequence : Poll...

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  3. What is self-incompatibility ? Why does self-pollination most lead to ...

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  4. What is bagging technique? How is it useful in a plant breeding progra...

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  5. What is meant by emasculation? When and why does a plant breeder emplo...

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  6. Explain the role of tapetum in the formation of a pollen grain wall.

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  7. What are cleistogamous flowers ? Can cross pollination occur in cleist...

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  8. Mention two strategies evolved to prevent self-pollination in flowers.

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  9. In the diagram given below, show the path of a pollen tube from the po...

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  10. Identify the type of carpel with the help of diagrams given below :

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  11. Draw the diagram of a mature embryo sac and show its 8-nucleate, 7-cel...

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  12. Give below are the events that are observed in an artificial hybridiza...

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  13. Differentiate Geitonogamy from Xenogamy.

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  14. What is artificial hybridization? Explain emasculation and bagging tec...

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  15. Write a note on the significance of pollination in plants.

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  16. Name the pollinating agents of flowers like maize and wheat. Give any ...

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  17. Differentiate between monoecious and dioecious plants. Give one exampl...

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  18. How many haploid nuclei and haploid cells are present in the female ga...

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  19. What is the role of integuments of ovule after fertilization? Which is...

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  20. Even though each pollen grain has two male gametes, why are at least 1...

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