This is AnnaSophia Robb. Annasophia Robb Height | Annasophia Robb Age | Annasophia Robb Boyfriend | Annasophia Robb Family | Annasophia Robb Career You may fall off your chair upon hearing that Anna is among 2017âs Top 20 richest actresses!
gametophyte (gÉmÄËtÉfÄªtË) [ key ], phase of plant life cycles in which the gametes, i.e., egg and sperm, are produced. The gametophyte is haploid, that is, each cell contains a single complete set of chromosomes, and arises from the germination of a haploid spore.
In flowering plants, the megagametophyte (also referred to as the embryo sac) is much smaller and typically consists of only seven cells and eight nuclei. This type of megagametophyte develops from the megaspore through three rounds of mitotic divisions.t consists of three parts: The integument(s) forming its outer layer(s), the nucellus (or remnant of the megasporangium), and female gametophyte (formed from haploid megaspore) in its center. The female gametophyteâspecifically termed a megagametophyte âis also called the embryo sac in angiosperms.