The fusion of the male and female gametes is termed as _______.

_______ is the transference of pollen grains from the anther of a flower to the stigma of a flower.

In ______, the pollen from the anther fails to germinate on the stigma of the flower.

________ plants are the insect pollinated flowers.

________ is the process of transfer of pollen grains from the anthers of flowers of one plant to the stigma of a flower of another plant.

Plants or wind pollinated plants that often produce pollen grains which are provided with wing are

_________ plants are aquatic and produce large quantities of pollen grains which often have the same specific gravity as that of water.

_____ flowers are composed of the organs of female reproductive system; style and ovary.

___________ plants produce plenty of nectar which is contained in modified pitcher-shaped nectarines.

In _________, the pollen produced by the anther of a flower is transferred to the stigma of the same flower or to the stigma of another flower borne on the same plant.

In ______, the flowers possess structural features which do not allow self pollination.

The _______ divides into two male gametes or nuclei which move to the tip of the tube and lie in the mass of cytoplasm.

The nucleus formed by the fusion of the polar nuclei and forms the _________.

One male gamete fuses with the egg cell and forms the fertilized egg or the _____.

After fertilization, the egg cell surrounds itself with a cell wall and is known as the _____.

Post fertilization, oospores develops into _____.

Fertilization in angiosperms is referred to as _______.

_________ is the simultaneous maturation of anthers and stigma.

The flowers should be either male or female and borne on separate plants is called _____..

In ______, the anthers of the flower mature before the stigma.

In ______, the stigma of the flower matures before the anthers.

The _________ remains close to the growing tip of the pollen tube and eventually disintegrates.

________ is a practice adopted by the scientists to evolve new varieties of plants.

The fusion of male gamete with the two polar nuclei is often termed as ______.

Post fertilization, ovule develops into _____.