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Question
How many meiotic divisions are required to produce 200 seeds?
Options
50
100
200
250
Solution
250
Explanation:
To produce 200 seeds, 200 male gametes must fuse with 200 female gametes. We have to consider meiotic divisions in both the male and the female. 1 female gamete is formed by 1 meiotic division. Reset three cells degenerate to provide nutrition to the female gamete (egg cell). So for 200 seeds, 200 female gametes have to be formed. So there will be 200 meiotic divisions in females.
Now, 1 meiotic division in males produces 4 gametes. So, in order to make 200 male gametes, there will be 50 meiotic divisions in males. In total, there are 200 + 50 = 250 meiotic divisions required to produce 200 seeds.
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