Growth of pollen tube towards embryo sac is
Geotropism
Thigmotaxis
Chemotaxis
Phototaxis
Which are the three cells found in a pollen grain when it is shed at the three celled stage ?
Function of filiform apparatus is to
The generative cell of a two-celled pollen divides in the pollen tube but not in a three-celled pollen. Give reasons.
Describe pollen-pistil interaction
Pollen pistil interaction is