Question

For the formation of 50 seeds how many minimum meiotic divisions are necessary

Answer 1

hey mate...

here is your answer...

In a meiotic division, we have two phases: Meiosis I and meiosis II. So, we get a total of four haploid cells from one diploid cell.

Hence, for the formation of one seed:

>>Pollen Grain (Microsporogenesis): Four pollen grains are produced as a result of one meiotic division in a pollen sac.

>4 pollen grains= 1 meiotic division

>1 pollen grain= 1/4 meiotic division

>50 pollen grains= 50/4 meiotic divisions

>>Egg (Megasporogenesis): In the megasporangium, only one functional egg cell is produced, because of the degeneration of three others.

>1 egg cell= 1 meiotic division

>50 egg cells = 50 meiotic divisions

To get the total number of meiotic divisions, we add both the aforementioned values,  

Total number of meiotic divisions= 50/4 +50 = 62.5 meiotic divisions.

hope it helps...

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