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  4. To produce 10 seeds how many meiosis will be needed and how many pollen grain will be wasted?

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Q. To produce 10 seeds how many meiosis will be needed and how many pollen grain will be wasted?

Cell Cycle and Cell Division

Solution:

No. of required meiosis $= n + \frac{n}{4} = \frac{5n}{4}$
where n = no. of seeds.
$=\frac{5\times10}{4} = \frac{50}{4} = 12.5 = 13$
10 Megaspore + 10 Microspore = 10 seeds
To produce 10 Megaspores, 10 meiotic division would be needed
13 - 10 = 3 meiosis will produce 12 microspore
So, wastage of pollen grain = 2