Question

What will be the ploidy of the cells of the nucellus, MMC, the functional megaspore and female gametophyte ?

Answer 1

1.Nucellus: It is a mass of cells inside the integuments in the ovule and helps in the nourishment for megaspore. 2.MMC: MMC ( megaspore mother cell ) is the female meiocyte that undergoes meiosis and produces 4 megaspores. 3.The functional megaspore: Out of four megaspores formed by meiosis only one megaspore will remain functional and will go for further development known as functional megaspore. 4.Female gametophyte:It is the embryo sac in which female gamete is present and where fertilization also takes place. $$\begin{array}{cc}\text{Type of Cell}& \text{Ploidy}\\ \text{Nucellus}& \text{Diploid}\\ \text{MMC}& \text{Diploid}\\ \text{Functional}& \text{Haploid}\\ \text{megaspore}& \\ \text{Female}& \text{Haploid}\\ \text{gametophyte}& \end{array}$$