Even though each pollen grain has two male gametes, why are at least 10 pollen grains and not 5 pollen grains required to fertilise 10 ovules present in a particular carpel ?

Even though each pollen grain has two male gametes, why are at least 10 pollen grains and not 5 pollen grains required to fertilize 10 ovules present in a particular carpel?

Even though each pollen grain has two male gametes, why are at least 10 pollen grains and not 5 pollen grains required to fertilise 10 ovules in a particular carpel?

Pollen grains are male gametes.

Even though each pollen grain has 2 male gemetes, why at least 20 pollen are required to fertilise, 20 ovules in carpel?

Each pollen grain produces tow male gametes. How many pollen grains will be required to fertilise 4 ovules present in a particular carpel ? Give reasons in support of your answer.

In a pollen grain, large irregularly shaped nucleus present in

How many male gametes does each pollen grain contains?