Question

A flower of tomato plant following the process of sexual reproduction produces $240$ viable seeds. Answer the following question giving reasons.

What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?

Answer 1

The minimum number of pollen grains that must have been involved are 240, as 240 viable seeds are formed. This is because each pollen grain contains 2 male gametes, out of which one fuses with egg forming zygote that gives rise to seeds.