Question

How many pollen grains and ovules are likely to be formed in the anther and the ovary of an angiosperm bearing 25 microspore mother cells and megaspore mother cells respectively?

Answer 1

Since each microspore, mother cell gives rise to a tetrad containing 4 pollen grains each therefore 25 microspore mother cell will give 100 pollen grains. Each megaspore mother cell gives rise to a single megaspore which on development becomes ovule therefore 25 megaspore mother cell will give 25 ovules.