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Answer: Plants’ lifecycle involves a multicellular haploid generation and gametophyte and a multicellular diploid generation that is a saprophyte. Ploidy is the set of chromosomes in a cell. The level of ploidy is diploid. A diploid means a cell with many chromosomes in each cell and one set from each parent. The ploidy level of nucellus is 2n. MMC is a microspore mother cell or meiocyte that undergoes meiotic division and produces female gametes. The ploidy of MMC is 2n.
Megasprores sometimes, es called macrospores, are such spores which are present in heterosporous plants. Megaspores germinate into a female gametophyte that produces egg cells. In nature, megaspore is haploid (it has a single cell which contains a single set of chromosomes), and ploidy is n.
A female gametophyte is a female gamete. A female gametophyte analysis is required as it is integral to the plant life cycle and essential for second apomictic seed formation. The ploidy of female gametophyte is n which is half of MMC. A female gametophyte develops in the ovule and consists of three antipodal cells. The first is a central cell that becomes fertilizfertilisedes, rises to the embryo and endosperm of the seed, then two synergid cells and one egg cell. The angiospefemale angiospermhyte is critical for plant reproduction. As the rAs a resultcleus has 2n ploidy, MMC have 2n ploidy, functional megaspore has n and female gametophytes – have n ploidy.
