1.How many pollen grains will be produced in a flower of mustard plant having 10 microspore mother cells in each microsporangium? (PLEASE EXPLAIN)
(a) 240 (b) 960 (c) 1920 (c) 480
The correct option is (b).
A mustard flower has six dithecous stamens.
Number of microspore mother cells in one stamen = 10 4 = 40
Total number of microspore mother cells in six stamens = 40 6 = 240
Now, each microspore mother cell undergoes meiosis and produces 4 pollen grains.
Therefore, number of pollen grains produced by 240 microspore mother cells = 240 4 = 960
A mustard flower has six dithecous stamens.
Number of microspore mother cells in one stamen = 10 4 = 40
Total number of microspore mother cells in six stamens = 40 6 = 240
Now, each microspore mother cell undergoes meiosis and produces 4 pollen grains.
Therefore, number of pollen grains produced by 240 microspore mother cells = 240 4 = 960