The plant parts which consist of two generations, one within the other:
(a) Pollen grains inside the anther
(b) A germinated pollen grain with two male gametes
(c) A seed inside the fruit
(d) An embryo sac inside the ovule
From Botany › Sexual Reproduction in Flowering Plants › Post-fertilisation: embryo, seed, fruit; apomixis — lectures, notes and every past question on it.
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