where make and female ga mere development takes plance in angiosperm flowers
Explanation Male gametophyte- The male reproductive part of the flower is the anther. Anther is composed of four microsporangia and each contains a sporogenous tissue. The cells of sporogenous tissue undergo meiotic division to form microspores which develop into pollen grains. This process is called microsporogenesis. Pollen grain represents male gametophyte. It is generally spherical in shape and is two-layered. Outer layer is hard called exine and inner layer is called intine. Female gametophyte- The female reproductive part of the flower is the gynoecium or pistil. It consists of- Stigma, style and ovary. Ovary is the basal bulged part in which the ovarian cavity is present. Inside the ovarian cavity, placenta is present. Ovules or megasporangia arise from the placenta. Inside the ovule is the embryo sac enclosed with a mass of cells called nucellus. Ovules differentiate to form a single megaspore from the megaspore mother cell by the process called megasporogenesis. Only one megaspore out of the four megaspore is functional which develops into female gametophyte (embryo sac). Final answer The development of male gametophyte takes place within the anther. The development of female gametophytes takes place inside the ovules.
