What is development of male gametophyte before pollination?

Before pollination in the pollen sac: Pollen grain/microspore marks the beginning of the male gametophyte, thus it is the first cell of the male gametophyte. It undergoes the first mitotic division to produce a bigger, naked vegetative cell and a small, thin-walled generative cell.

How does development of male gametophyte take place?

The development of the male gametophyte occurs in both stamen and in the female reproductive part. The microspore mother cell is all the way converted into a sperm cell which is a final male gametophyte. Complete step by step answer: -The anther contains two lobes and each lobe has two pollen sacs or microsporangia.

What is the development of male gametophyte in angiosperms?

Male gametophyte development of angiosperms is a com- plex process that requires coordinated activity of different cell types and tissues of both gametophytic and sporophytic origin underlaid by specific gene expression patterns.

What develops into male gametophytes quizlet?

Stamen: produce microspores that develop into pollen grains containing male gametophytes. Consists of the stalk called the filament and the terminal sac, the anther where pollen is produced. 4.)

What is Microsporogenesis explain the development of male gametophyte?

microsporogenesis is a good just formation of microscope from microspore Mother cell how the development of male gametophyte takes place so it develops from microscope mother cell microscope mother cell is just a differentiated cells of sporogenous tissue in antelope first of all microscope mother cell undergoes …

What is Microsporogenesis and development of male gametophyte?

The mature male gametophyte development experienced seven major stages as the followings: archesporial cells, aporgenous cells, microspore mother cells, tetrads of microspores (tetrahedral), uninucleate microspores, 2-uncleate pollens and 2-celled pollen stage.

What does the gametophyte stage produce?

In the gametophyte phase, which is haploid (having a single set of chromosomes), male and female organs (gametangia) develop and produce eggs and sperm (gametes) through simple mitosis for sexual reproduction.

What develops into male gametophytes what develops into male gametophytes Megasporangia microspore megaspore Microsporangia?

Microsporangia produce microspores that give rise to male gametophytes. Each megasporangium has a single functional megaspore while each microsporangium consists of vast numbers of microspores. The ovules consist of the megasporangium, megaspore, and their integument.

What is Microsporogenesis explain the structure and development of pollen grain and male gametophyte?

Answer. Formation of the male gametophyte in flowering plants takes place within specialized male reproductive organs called the stamens. During microsporogenesis, diploid pollen mother cells undergo meiotic division to produce tetrads of haploid microspores.

How many male gametes are produced during Microsporogenesis?

Pollen grain is male gametophyte containing generative cell which divides mitotically to give rise to two male gametes. So, one microspore mother cell produces four pollen grain and each pollen grain produces two gametes, there eight gametes are produced by one microspore mother cell.