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How do the pollen grains of Vallisneria ...

How do the pollen grains of Vallisneria protect themselves?

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In Vallisneria, the female flower stalk is coiled to reach the water surface to receive the pollen grains carried by water current.
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Knowledge Check

  • The pollen grain is

    A
    An immature male gametophyte
    B
    A mature male gametophyte
    C
    Partially development male gametophyte
    D
    Last stage of male gametophyte

  • Pollen grain is

    A
    highly reduced male gametophyte
    B
    well developed male gametophyte
    C
    highly reduced sporophyte
    D
    well developed female gametophyte

  • Pollen grain of Capsella is

    A
    Monocolpate
    B
    Bicolpate
    C
    Tricolpate
    D
    Polycolpate

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