Question: How Many Microspore Mother Cells Are Required?

How many meiotic divisions are needed for 1000 pollen grains?

250The number of meiotic division required to produce 1000 pollen grains of wheat are 250.

In one meiotic division four daughter cells are produced.

Therefore 1000 divided by 4=250..

What is difference between Microspore and pollen grain?

The main difference between microspore and pollen grain is that the microspore is a small spore in land plants, which develops into the male gametophyte whereas the pollen grain is a fine granule in seed plants, consisting of a reduced male gametophyte.

How many meiotic divisions are needed for 100 seeds?

For formation of 100 zygotes, 100 male gametes and 100 female gametes (eggs) are required. 100 male gametes are developed from 100 microspores (from 25 meiotic divisions) and 100 eggs are developed from 100 megaspores (from 100 meiotic division).

What is the difference between Microspore mother cell and pollen mother cell?

Sporogenous tissue is a group of cell which differentiates into microspore mother cell or pollen mother cell. Sporogenous tissue is the compactly arranged homogenous cell in the microsporangium found in young anther. Each microspore mother cell undergoes meiosis and gives rise to haploid microspore.

What is the other name of pollen mother cell?

oxford. views 3,456,112 updated Nov 7 2020. pollen mother cell The microsporocyte which undergoes 2 meiotic divisions to produce 4 microspores (the first cells of the male gametophyte generation of seed plants).

How many meiotic divisions are required to produce 50 seeds?

Thus, in order to produce 50 mature ovules, 50 megaspore mother cells will undergo 50 meiotic divisions, one meiosis per megaspore mother cell. This takes the requirement of 50 (in megaspore mother cells) + 13 (in microspore mother cells), i.e., 63 meiotic divisions.

What do you mean by Microsporangium?

Microsporangia are sporangia that produce microspores that give rise to male gametophytes when they germinate. Microsporangia occur in all vascular plants that have heterosporic life cycles, such as seed plants, spike mosses and the aquatic fern genus Azolla.

How do you determine the number of mitotic divisions?

Number of generations (n) of mitosis for producing ‘x’ cells is 2^n. First formula is used when the question is saying “Find the number of mitotic divisions required to produce say 100 cells” so for example, to produce 100 cells, 100-1 = 99 mitosis are required.

How many Microspore mother cell will produce 1000 Microspore?

So, the correct answer is ‘250’

How Microspore mother cell is formed?

microspore mother cell (microsporocyte) A diploid cell in plants that divides by meiosis to give rise to four haploid microspores (seesporophyll). In flowering plants microspore mother cells are formed within the pollen sacs of the anthers by mitosis; the microspores they produce develop into pollen grains…. …

How many pollen grain mother cells are required for the formation of 200 male gametes?

Four meiotic divisions are required for the formation of four oospheres and only one meiotic division for the formation of four male gametes. Thus 5 meiotic divisions are needed for the formation of 4 seeds and 250 meiotic divisions are required fro the formation of 200 seeds.

How many meiotic divisions are required to produce 400 seeds?

500 meiotic divisionsFour meiotic divisions are required for the formation of four oospheres and only one meiotic division for the formation of four male gametes. Thus 5 meiotic divisions are needed for the formation of 4 seeds and 500 meiotic divisions are required for the formation of 400 seeds.

How many meiotic divisions are required to produce 480 seeds?

One seed will be formed from one sperm and one egg. Thus,we need 480 eggs and so it will have 480 meiotic divisions and we need 480 sperms from the 120 meiotic divisions ( one pollen mother cell produces 4 pollen grains from 1 meiotic division).

How many meiotic divisions are necessary for formation of 80 sperms?

20Answer: The number of ‘meiotic divisions’ that are necessary for the production of 80 sperms is 20.