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What is the minimum number of meiotic and miotic divisions needed for the formation of 150 male gametes in an angiosperm ?

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18,180

19,150

20,200

17,200

answer is B.

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Detailed Solution

The minimum number of meiotic and miotic divisions needed for the formation of 150 male gametes:

150 male gametes are formed from 75 pollen grains. So 75 pollen grains can be produced by 19 meiotic divisions.

Every pollen grain undergoes 2 mitotic divisions and produce 2 male gametes, so 150 mitotic divisions required.

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