A bilobed and dithecous anther has 100 microspore mother cells per microsporangium. How many male gametophytes can it produce?
Each microsporangium has 100 microspore mother cells which form 400 microspores by meiosis (100 × 4).
In an anther, there are four microsporangia. So, the total number of microspores will be 4 × 400 = 1600.
As each microspore forms one male gametophyte, 1600 male gametophytes can be produced.