Arun
Last Activity: 5 Years ago
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.