name the type of gametes that are formed in staminate and pistillate flowers?

Question

Answer

staminate produce pollen grain and pistilates produce ovum or egg

Answer

staminate flower have lack of  pistil so they produces male gametes (pollen grains),and pistillate flower have lack of stamen so they only produces female gametes (egg).

Answer

Stamen(Male) produces pollen grain, while pistil(Female) produces egg /ovum

Answer

Introduction:

In plants, flowers are the reproductive structures responsible for the production of gametes, which are the specialized cells involved in sexual reproduction. Flowers can be classified into two main types based on their reproductive structures: staminate flowers and pistillate flowers.

Staminate Flowers:

Staminate flowers, also known as male flowers, are the flowers that possess male reproductive structures. These flowers do not have functional pistils and are responsible for producing male gametes, also known as pollen.

Formation of Gametes in Staminate Flowers:

The formation of gametes in staminate flowers occurs through a process called microsporogenesis. This process involves the production of microspores, which are the precursors of pollen grains. The microspores are produced within the anthers, which are the male reproductive organs of the flower.

During microsporogenesis, the cells within the anther undergo meiosis, a specialized cell division process that results in the formation of haploid cells. These haploid cells, known as microsporocytes, then undergo another round of cell division called mitosis to produce microspores.

Each microspore contains a haploid nucleus and a protective wall. These microspores develop into pollen grains, which are the mature male gametophytes. Each pollen grain contains two haploid nuclei: a generative nucleus and a tube nucleus.

Pistillate Flowers:

Pistillate flowers, also known as female flowers, possess female reproductive structures called pistils. These flowers are responsible for producing female gametes, also known as ovules.

Formation of Gametes in Pistillate Flowers:

The formation of gametes in pistillate flowers occurs through a process called megasporogenesis. This process involves the production of megaspores, which are the precursors of ovules. The megaspores are produced within the ovary, which is the female reproductive organ of the flower.

During megasporogenesis, cells within the ovary undergo meiosis, resulting in the formation of haploid cells called megasporocytes. One of these megasporocytes develops into a megaspore through a series of mitotic divisions. The megaspore then matures into an ovule, which contains the female gametophyte.

The female gametophyte within the ovule contains a haploid nucleus and is known as the embryo sac. The embryo sac typically consists of seven cells and eight nuclei, including the egg cell, synergids, antipodal cells, and the central cell.

Conclusion:

In summary, staminate flowers produce male gametes in the form of pollen grains, while pistillate flowers produce female gametes in the form of ovules. The process of gamete formation in staminate flowers is called microsporogenesis, whereas in pistillate flowers, it is called megasporogenesis. These gametes play a crucial role in sexual reproduction by fusing during fertilization to form a zygote, which eventually develops into a new plant.

Answer

Staminate flower have lack of pistil so they have male gamete (pollen grain) and pistillate flower have lack of stamen so they only produces female gamete (egg).

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