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Microsporocytes or microspore mother cell after meiosis give rise to microspore. No any other cell (in given options) divide by meiosis.

1. Pollen grains are found only in Gymnosperms and Angiosperms.
2. Embryo sac is a female gametophyte which contains the egg apparatus.
3. Nucellus - 2n, antipodal cells - n
4. Antipodal cells - n, egg cell - n

Correct answer: Antipodal cells - n, egg cell - n

Solution

Antipodal cells and the egg cell are both formed within the embryo sac, which is the haploid female gametophyte. Therefore, each of these cells has n chromosomes, making option D correct.

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