In meiotic sporogenesis, a diploid spore mother cell within the sporangium undergoes meiosis, producing a tetrad of haploid spores.
2.
Spore mother cells in the microsporangia divide by meiosis to form haploid microspores that develop further by two mitotic divisions into immature male gametophytes ( pollen grains ).
3.
The sporophyte produces spores ( hence the name ) by meiosis, a process also known as " reduction division " that reduces the number of chromosomes in each spore mother cell by half.
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