In cross pollination, pollen grains from the anther of a flower are transferred to the stigma of

1. the same flower
2. another flower on the same plant
3. flower of another plant of different species
4. flower of another plant of same species

flower of another plant of same species

Reason — The process of transfer of pollen grains from the anthers to the stigma of a flower of another plant of the same species is called cross pollination.