Question

How many meiotic divisions are required for the formation of 300 seeds in angiosperm?

Answer 1

For the formation of 300 seeds in angiosperms, 150 meiotic divisions are required.

Explanation:

In angiosperms, the process of seed formation involves the production of male and female gametes through meiosis. Each meiotic division leads to the formation of 4 haploid cells from a diploid parent cell. In the case of seed formation:

• For each seed, one meiotic division is required to produce a haploid male gamete (pollen grain) and a haploid female gamete (egg cell).
• Thus, for the formation of 300 seeds, a total of 300 male gametes and 300 female gametes are required.
• Since each male and female gamete is produced through one meiotic division, the total number of meiotic divisions required is 300 (for male gametes) + 300 (for female gametes) = 600.
• However, since one meiotic division produces both male and female gametes, only half of these divisions are independent. Therefore, 600 meiotic divisions are divided by two, giving us 150 meiotic divisions required for the formation of 300 seeds.

Conclusion:

A total of 150 meiotic divisions are required for the formation of 300 seeds in angiosperms.