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Choose the odd statement for pollen grains
(a)Pollen grains of some species cause severe allergies
(b)Can be used as food supplement
(c)Can be stored at in liquid
(d)Have fascinating array of patterns and designs of pectocellulose on outer wall.

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Important Questions on Sexual Reproduction in Flowering Plants
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Persistent nucellus present in some seeds is called

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Most common type of embryo sac present in angiosperms is

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Persistent nucellus in the seeds of black pepper is called

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Parthenocarpic fruits

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An aquatic plant which is pollinated by water is

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If there is only one PMC in a pollen sac then the total number of male gametes produced by it is

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The event which is unique to angiosperms is

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The portion of embryonal axis above the level of attachment of scutellum is called
