Meiotic Division to Produce 102 Pollen Grains



Explanation:


- In plants, pollen grains are produced through meiosis within the anthers of the flower.
- Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of haploid cells.
- The process of pollen grain formation begins with a diploid cell called a microspore mother cell within the anther.
- The microspore mother cell undergoes meiosis to produce four haploid cells called microspores.
- Each microspore then undergoes mitosis to form a pollen grain, which consists of two cells - a generative cell and a tube cell.
- Therefore, to produce 102 pollen grains, 102 microspores need to be formed.
- Since each meiotic division produces four microspores, the number of meiotic divisions required can be calculated as follows:

102 pollen grains = 102 microspores
102 microspores / 4 microspores per meiotic division = 25.5 meiotic divisions

- Since meiosis results in whole numbers of divisions, it is necessary to round up to the nearest whole number.
- Therefore, a total of 26 meiotic divisions are required to produce 102 pollen grains in a plant.