The phenomenon of syngamy (fertilization) in angiosperms was discovered by
Svedberg
Strasburger
Nawaschin
Coulter and Chamberlin
The type of fossil pollen grains present in the area may be helpful in the exploration of
In castor, proliferation of the outer integumentary cells at micropylar region
Filiform apparatus is characteristic feature of
Filiform apparatus is a characteristic feature of
Transfer of pollen grains from the anther to the stigma of another flower of the some plant this process is