You asked: How many meiotic and mitotic divisions are required for the formation of embryo sac from megaspore mother cell?

How many mitotic divisions are required for the formation embryo sac in megaspore?

There are three mitotic divisions to form a mature embryo sac from megaspore mother cell.

How many meiotic and mitotic divisions are required for the formation of female gametophyte from Megaspore mother cell *?

2 meiotic and 1 mitotic.

How many meiotic and mitotic divisions take place for complete development of embryo sac from a Megaspore mother cell?

1 meiosis and 2 mitosis.

How many meiotic and mitotic divisions are required for the formation of embryo sac?

So, there is one meiotic division and 3 mitotic divisions to form an embryo sac. In order to form a microspore tetrad, 1 meiosis is required. Each cell of the tetrad undergoes 2 mitotic divisions to form 2 male gametes. Actually microsporogenesis means formation of microspores or pollen grains.

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How many mitotic divisions are in the formation of embryo sac?

Both the nuclei of the functional dyad take part in the formation of embryo sac. Each nucleus undergoes two mitotic divisions and the mature embryo sac is 8 nucleated.

How many meiotic divisions occur in the megaspore to form the embryo sac?

Question: How many meiotic divisions occur to form a mature embryo sac? Answer: One Meiotic division occurs, one Megaspore mother cell forms 4 Megaspores. One Megaspore remains functional, and it forms Embryo Sac by undergoing 3 free nuclear divisions.

How many mitotic divisions are required for development of female gametophyte?

Gamete Formation

From the remaining functional megaspore, the megagametophyte (also known as female gametophyte or embryo sac) develops by three mitotic divisions, at the mature stage consisting of 8 nuclei and 7 cells (one egg cell, two synergids, one central cell and three antipodals).

How many meiotic and mitotic divisions are required for the formation of male gametophyte from?

Hence, one meiotic division and two mitotic division are required for the formation of fully mature male gametophyte from microspore mother cell in angiosperm.

How many mitotic divisions take place during development of female gametophyte?

For female gametophyte development, only one functional megaspore out of the four megaspores survives, and it undergoes three rounds of mitotic divisions and subsequent cellularizations to produce a seven-celled mature embryo sac, also termed the female gametophyte (Yang and Sundaresan, 2000; Drews and Yadegari, 2002).

How many mitotic divisions are required for the formation of 100 matured embryo sac?

So, for the development of 100 megaspores 100 meiotic division is required. – So, by the fusion of 100 microspores and 100 megaspores, 100 seeds are formed. – Hence for the 100 seed production 200 meiotic division takes place in the Cyperaceae family. Hence, the correct answer is option (D).

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How many meiotic and mitotic divisions are required for the formation of 100 seeds?

Hence, number of meiotic divisions necessary for 100 zygotes formation = 25 + 100 = 125.