Why 125 meiotic division are essential for development of 100 grains of wheat?
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Meiotic divisions are responsible for gamete formation. For wheat or any other flowering plant it is necessary to have a pollen ( 4 after one meiotic division) and an egg cell ( usually one after one meiotic division) to produce a single seed. To produce a single wheat grain there should be 100 meiotic divisions to produce hundred egg cells. And 25 divisions to produce 100 pollen grains. So total 125 meiotic divisions are required to produce 100 wheat grains.
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