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Give a structure of a typical pollen gra...

Give a structure of a typical pollen grain and it's pre- and post-pollination changes.

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Answer within 200 words : Give a structure of a typical pollen grain and its pre- and post - pollination changes .

Give an account of ultra-structure of a typical plant cell.

Give the typical structure of an embryosac and how it is formed.

Which type of pollen grains are found in insect pollinated flowers ?

Explain : Give a peculiar adaptation of pollen grains of water pollinated species.

Correct the statement if required by changing of bracketed words only. The condition where pollen grains are incapable of pollinating the stigma of the same flower is called (dichogamy).

Read the following statements and select the correct option. Statement 1 : In pea plant, transfer of pollen grains to the stigma is easy. Statement 2 : In cross pollinating plants, pollination does not take place.

Name the type of pollination as a result of which genetically different types of pollen grains of same species land on the stigma.

USHA PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-EXERCISE
  1. Describe the chain elongation process of translation of prokaryotes.

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  2. Give an account of development of female gametophyte of angiosperms.

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  3. State and explain Mendel's laws of inheritance.

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  4. Describe the process of DNA replication.

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  5. Describe the structure of DNA molecule as per the model proposed by Wa...

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  6. Give a structure of a typical pollen grain and it's pre- and post-poll...

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  7. Distinguish between: Microsporogenesis and megasporogenesis

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  8. Distinguish between: Chasmogamous flower and cleistogarmous flower.

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  9. Distinguish between:Selfpolination and cross pollination

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  10. Distinguish between:Geitonogamy and xenogamy

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  11. Distinguish between:Wind polinanted flowers and insect pollinatedflowe...

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  12. Distinguish between: Dichogamy and herkogamy

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  13. Distinguish between:. Syngamy and triple fussioon

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  14. Distinguish between: Fertilization and double fertilization

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  15. Distinguish between: Embyo and endoperm

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  16. Distinguish between: Integument and testa

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  17. Distinguish between: Coleoptile and coleorhiza

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  18. Distinguish between: Hypocotyl and epicotyl

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  19. Distinguish between: Perisperm and endosperm

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  20. Distinguish between: Parthenocarpy and parthenogenesis

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