Question

What is the importance of MMC undergoing meiosis?

Answer 1

Hint A megaspore mother cell, also known as a megasporocyte, is a diploid cell in plants that undergoes meiosis and produces four haploid megaspores. At least one spore matures into a haploid female gametophyte. Within the megasporangium tissue, the megaspore mother cell emerges.

Complete answer:
Only one of the four megaspores is functional at maturity in gymnosperms and most blooming plants, and the other three quickly degenerate. The remaining megaspore divides mitotically and matures into a gametophyte, which produces one egg cell.
Three mitotic divisions are involved in developing the gametophyte, which has seven cells, one of which (the centre cell) has two nuclei that subsequently unite to form a diploid nucleus in the most common kind of megagametophyte development in flowering plants (the Polygonum type).
Double fertilisation happens in flowering plants, in which two sperm fertilise the two gametes inside the megagametophyte (the egg cell and the central cell) to form the embryo and endosperm.
Meiosis is a type of cell division that produces four daughter cells, each with half of the parent cell's chromosomes. The gametes — sperm in males and eggs in females – are these cells.
Megasporogenesis is the process of megaspores forming from the mother cell of the megaspore. It is found in the ovary's ovule.
To keep the gamete's ploidy, the MMC, or megaspore mother cell, goes through meiosis.
The MMC is a diploid organism that produces haploid megaspores through meiotic division.
A megaspore mother cell, also known as a megasporocyte, is a diploid plant cell that generates four haploid megaspores after going through meiosis. In most plants, only one of these megaspores is active, and it develops into an embryo sac or female gametophyte.

Note: Actin-related proteins modulate meiotic gene expression in the megaspore mother cell in Arabidopsis, regulating female meiosis. Dmc1, a gene involved in meiotic recombination repair's strand-exchange processes, is one of the major genes whose expression is controlled.