The number of meiosis required to produce 10 seeds of Cyperus is?
A
20
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B
13
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C
1.25
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D
2.5
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Solution
The correct option is B20
For the formation of 10 seeds, 10 egg cells and 10 pollen grains are required.
The pollen mother cell produces 4 pollen grains, but 3 of them degenerate.
Hence for 10 pollen grains to be formed, 10 divisions are required in Cyperus.
Total number of meiotic divisions required to produce 10 seeds in Cyperus = No. of divisions required for egg cells + No. of divisions required for pollen grains