`color{brown}"Male Structures"`:
● `color{Green}"Stamens"` are the male sex organs in a flower.
● Each stamen consists of 2 parts; a slender `color{Green}"filament"` with an `color{Green}"anther"` at the tip.
● An anther contains `color{Green}"four microsporangia"`, where the microspore mother cells become differentiated.
● Then, the microspore mother cells undergo meiosis to produce four `color{Green}"microspores"`, each of which develops into a `color{Green}"pollen grain"`.
`color{brown}"Female Structures"`:
● The female sex organs in a flower are the `color{Green}"pisti"`l or the `color{Green}"carpel"`.
● Pistil consists of three parts, an `color{Green}"ovary"` (enclosing one to many ovules), a `color{Green}"style"` and a `color{Green}"stigma"`.
● Each ovule (megasporangium) has a body called `color{Green}"nucellus"`. It is covered by two `color{Green}"integuments"`, except at the micropyle.
● A `color{Green}"megaspore mother cell"` differentiates in the nucellus and it undergoes meiosis; eventually one functional megaspore enlarges and forms the highly reduced haploid female gametophyte, called `color{Green}"embryo sac"`.
● Each embryo-sac has a `color{Green}"three-celled egg apparatus – one egg cell and two synergids"`, `color{Green}"three antipodal cells"` and `color{Green}"two polar nuclei"`.
●The polar nuclei eventually fuse to produce a `color{Green}"diploid secondary nucleus"`.
`color{brown}"Male Structures"`:
● `color{Green}"Stamens"` are the male sex organs in a flower.
● Each stamen consists of 2 parts; a slender `color{Green}"filament"` with an `color{Green}"anther"` at the tip.
● An anther contains `color{Green}"four microsporangia"`, where the microspore mother cells become differentiated.
● Then, the microspore mother cells undergo meiosis to produce four `color{Green}"microspores"`, each of which develops into a `color{Green}"pollen grain"`.
`color{brown}"Female Structures"`:
● The female sex organs in a flower are the `color{Green}"pisti"`l or the `color{Green}"carpel"`.
● Pistil consists of three parts, an `color{Green}"ovary"` (enclosing one to many ovules), a `color{Green}"style"` and a `color{Green}"stigma"`.
● Each ovule (megasporangium) has a body called `color{Green}"nucellus"`. It is covered by two `color{Green}"integuments"`, except at the micropyle.
● A `color{Green}"megaspore mother cell"` differentiates in the nucellus and it undergoes meiosis; eventually one functional megaspore enlarges and forms the highly reduced haploid female gametophyte, called `color{Green}"embryo sac"`.
● Each embryo-sac has a `color{Green}"three-celled egg apparatus – one egg cell and two synergids"`, `color{Green}"three antipodal cells"` and `color{Green}"two polar nuclei"`.
●The polar nuclei eventually fuse to produce a `color{Green}"diploid secondary nucleus"`.