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Assertion : Hydrophily constitues a majo...

Assertion : Hydrophily constitues a major mode of pollination in most of the aquatic angiospermous plants.
Reason : Almost all the aquatic dicot and monocot plants require water for the transport of male gametes and for fertilisation.

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ALLEN-REPRODUCTION IN ORGANISMS AND SEXUAL REPRODUCTION IN FLOWERING PLANTS-EXERCISE-IV (Assertion & Reason )
  1. Assertion :- Cleistogamous flowers are invariably autogamous. Reason...

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  2. Asertion :- Cleistogamy is disadvantageous for plants. Reason:- Clei...

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  3. Assertion : Although geitonogamy is functionally crosspollination invo...

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  4. Assertion :- It is believed particularly for some bryophytes and pteri...

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  5. Assertion : Hydrophily constitues a major mode of pollination in most ...

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  6. Assertion :- Both wind and water pollinated flowers are not very colou...

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  7. Assertion :- Non synchronised pollen release and stigma receptivity is...

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  8. Assertion :- In monoecious plants neither autogamy nor geitonogamy can...

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  9. Assertion :- Most zygotes divide only after certain amount of endosper...

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  10. Assertion :- Seed bearing plants like angiosperms show wide geographic...

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  11. Assertion :- Apomixis is a form of asexual reproduction that mimics se...

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  12. Assertion :- Endosperm increases the success rate of seedling developm...

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  13. Assertion : Clone is formed by amphimixis. Reason : ln amphimixis, ne...

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  14. Assertion : Synergids of embryosac also help in fertilization in Angio...

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  15. Assertion : When embryo sac develops from megaspore mother cell withou...

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  16. Assertion : Pollen tube shows apical growth. Reason : Growth of polle...

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  17. Assertion :- Development of pollen grains begins only after pollinatio...

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  18. Assertion :- ln Angiosperms, sexual reproduction takes place through t...

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  19. Assertion :- The main plant of angiosperm is in the form of sporophyte...

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  20. Assertion :- Polygonum type of embryosac, is most common in angiosperm...

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