Question

development of male gametophyte

Answer 1

Development of male gametophyte starts in pollen grains, while still present in the microsporangium or pollen sac (precocious germination). Microspore undergoes only two mitotic divisions. First mitotic division leads to the formation of a vegetative cell and generative cell.

thanks...!

Answer 2

Development Of Male Gametophyte

• The pollen grains or microspores are produced within the anther of the stamen.

• A typical anther consists of four microsporangia.

• This type of anther is said to be dithecous (two lobed).

• The development of pollen grains or microspores in the microsporangium of an anther is called microsporogenesis.

• The stamen is developed as a projection.

• It elongates and the tip becomes four lobed.

• This four lobed structure is the young anther.